-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PVOQvUr11lAYfUGxPgty0CeSn2irvxZEXHhWuxUjKSbV61gneqxH2TKiY4eXNVZS
 Lpa5ah/LamM6X9FqGUF/bw==

<SEC-DOCUMENT>0000933430-08-000032.txt : 20080826
<SEC-HEADER>0000933430-08-000032.hdr.sgml : 20080826
<ACCEPTANCE-DATETIME>20080826163946
ACCESSION NUMBER:		0000933430-08-000032
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080822
FILED AS OF DATE:		20080826
DATE AS OF CHANGE:		20080826

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ISCO INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000888693
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				363688459
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1001 CAMBRIDGE DRIVE
		CITY:			ELK GROVE VILLAGE
		STATE:			IL
		ZIP:			60007
		BUSINESS PHONE:		8473919400

	MAIL ADDRESS:	
		STREET 1:		1001 CAMBRIDGE DRIVE
		CITY:			ELK GROVE VILLAGE
		STATE:			IL
		ZIP:			60007

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SPURGEON CORP
		CENTRAL INDEX KEY:			0001061060
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-22302
		FILM NUMBER:		081039684

	BUSINESS ADDRESS:	
		STREET 1:		290 S COUNTY FARM RD
		STREET 2:		THIRD FL
		CITY:			WHEATON
		STATE:			IL
		ZIP:			60187
		BUSINESS PHONE:		6305887200

	MAIL ADDRESS:	
		STREET 1:		290 S COUNTY FARM RD
		STREET 2:		THIRD FL
		CITY:			WHEATON
		STATE:			IL
		ZIP:			60187

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ALEXANDER FINANCE LP
		CENTRAL INDEX KEY:			0001098820
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-22302
		FILM NUMBER:		081039685

	BUSINESS ADDRESS:	
		STREET 1:		1560 SHERMAN AVE
		STREET 2:		STE 900
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201
		BUSINESS PHONE:		8477331230

	MAIL ADDRESS:	
		STREET 1:		1560 SHERMAN AVE
		STREET 2:		STE 900
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WHITMORE BRADFORD T
		CENTRAL INDEX KEY:			0000933430
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-22302
		FILM NUMBER:		081039686

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		8477331230

	MAIL ADDRESS:	
		STREET 1:		1560 SHERMAN AVE
		STREET 2:		SUITE 900
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-08-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000888693</issuerCik>
        <issuerName>ISCO INTERNATIONAL INC</issuerName>
        <issuerTradingSymbol>ISO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000933430</rptOwnerCik>
            <rptOwnerName>WHITMORE BRADFORD T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1560 SHERMAN AVE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 900</rptOwnerStreet2>
            <rptOwnerCity>EVANSTON</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001098820</rptOwnerCik>
            <rptOwnerName>ALEXANDER FINANCE LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1560 SHERMAN AVE</rptOwnerStreet1>
            <rptOwnerStreet2>STE 900</rptOwnerStreet2>
            <rptOwnerCity>EVANSTON</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001061060</rptOwnerCik>
            <rptOwnerName>SPURGEON CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>290 S COUNTY FARM RD</rptOwnerStreet1>
            <rptOwnerStreet2>THIRD FL</rptOwnerStreet2>
            <rptOwnerCity>WHEATON</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60187</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>9.5% Convertible Notes</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.22</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-08-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionTotalValue>
                    <value>550000</value>
                </transactionTotalValue>
                <transactionPricePerShare>
                    <value>0.2</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2010-08-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock $.001 par value</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2750000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <valueOwnedFollowingTransaction>
                    <value>550000</value>
                </valueOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>*</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The 9.5% Convertible Notes are exercisable immediately.</footnote>
        <footnote id="F2">As president of Bun Partners, Inc., General Partner of Alexander Finance, LP, Bradford T. Whitmore is an indirect beneficial owner.  As General Partner of Alexander Finance, LP, Spurgeon Corporation is an indirect beneficial owner.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Bradford T. Whitmore</signatureName>
        <signatureDate>2008-08-26</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Bradford T. Whitmore, President: Bun Partners, Inc.</signatureName>
        <signatureDate>2008-08-26</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Jerald A. Trannel, Vice President</signatureName>
        <signatureDate>2008-08-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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