-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 QEKDhaCUaNLQQWCmty3lXamvgTRDJ1YpolXyct2Fyg2iF5h8hmDb4ZATq7hQ6d78
 dgYVCRJBxcFlOyliVzEKdg==

<SEC-DOCUMENT>0000047307-08-000012.txt : 20080303
<SEC-HEADER>0000047307-08-000012.hdr.sgml : 20080303
<ACCEPTANCE-DATETIME>20080303162402
ACCESSION NUMBER:		0000047307-08-000012
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080221
FILED AS OF DATE:		20080303
DATE AS OF CHANGE:		20080303

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SLADE JANET H
		CENTRAL INDEX KEY:			0001243286

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-00147
		FILM NUMBER:		08659986

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		2165418060

	MAIL ADDRESS:	
		STREET 1:		C/O HICKOK INCORPORATED
		STREET 2:		10514 DUPONT AVE
		CITY:			CLEVELAND
		STATE:			OH
		ZIP:			44108

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HICKOK INC
		CENTRAL INDEX KEY:			0000047307
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823]
		IRS NUMBER:				340288470
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		10514 DUPONT AVE
		CITY:			CLEVELAND
		STATE:			OH
		ZIP:			44108
		BUSINESS PHONE:		2165418060

	MAIL ADDRESS:	
		STREET 1:		10514 DUPONT AVE
		CITY:			CLEVELAND
		STATE:			OH
		ZIP:			44108

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HICKOK ELECTRICAL INSTRUMENT CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2008-02-21</periodOfReport>

    <dateOfOriginalSubmission>2008-02-25</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000047307</issuerCik>
        <issuerName>HICKOK INC</issuerName>
        <issuerTradingSymbol>HICKA.OB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001243286</rptOwnerCik>
            <rptOwnerName>SLADE JANET H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O HICKOK INCORPORATED</rptOwnerStreet1>
            <rptOwnerStreet2>10514 DUPONT AVE</rptOwnerStreet2>
            <rptOwnerCity>CLEVELAND</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>44108</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-02-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2008-02-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Granted pursuant to the Hickok Incorporated 2007 Outside Directors Stock Option Plan which complies with Rule 16b-3. These options become exercisable in equal 33% increments over three years beginning on the first anniversary of the date of the grant</footnote>
        <footnote id="F2">This amendment is being filed solely for the purpose of correcting footnote number 2 in the original Form 4 filed February 25, 2008. Inadvertently, footnote number 2 from Form 4 filed on February 23, 2007 was repeated in the current year filing. Footnote number 2 should have read as follows. The reporting person still holds previously reported options to buy 9,000 Class A Common Shares granted pursuant to the Hickok Incorporated 1997 Outside Directors Stock Option Plan, the Hickok Incorporated 2000 Outside Directors Stock Option Plan, the Hickok Incorporated 2003 Outside Directors Stock Option Plan and the Hickok Incorporated 2007 Outside Directors Stock Option Plan.</footnote>
        <footnote id="F3">Due to a 1000 character limit, Footnote 3 is a continuation of Footnote 2: All these plans comply with Rule 16b-3. These options were granted between February 25, 1999 and February 22, 2007 at exercise prices ranging from $3.55 to $10.50, become or became exercisable between February 25, 2000 and February 22, 2010, and will expire between February 25, 2009 and February 22, 2017. The total number of options set forth in column No. 9 reflects the expiration of options to purchase 1,000 Class A Common Shares granted to the reporting person on February 25, 1998, which options expired on February 25, 2008.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Janet H. Slade</signatureName>
        <signatureDate>2008-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----