<SEC-DOCUMENT>0001104659-22-076448-index.html : 20220701
<SEC-HEADER>0001104659-22-076448.hdr.sgml : 20220701
<ACCEPTANCE-DATETIME>20220701060047
ACCESSION NUMBER:		0001104659-22-076448
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20220701
DATE AS OF CHANGE:		20220701
GROUP MEMBERS:		SB4 INVESTMENTS LLC

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RIDGEFIELD ACQUISITION CORP
		CENTRAL INDEX KEY:			0000812152
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		IRS NUMBER:				840922701
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-39963
		FILM NUMBER:		221059459

	BUSINESS ADDRESS:	
		STREET 1:		3250 RETAIL DRIVE, SUITE 120-518
		CITY:			CARSON CITY
		STATE:			NV
		ZIP:			89706
		BUSINESS PHONE:		805-583-7744

	MAIL ADDRESS:	
		STREET 1:		3250 RETAIL DRIVE, SUITE 120-518
		CITY:			CARSON CITY
		STATE:			NV
		ZIP:			89706

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BIO MEDICAL AUTOMATION INC
		DATE OF NAME CHANGE:	19990323

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OZO DIVERSIFIED AUTOMATION INC /CO/
		DATE OF NAME CHANGE:	19920703

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BRONSON STEVEN N
		CENTRAL INDEX KEY:			0001000383
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>tm2220210d1_sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: tm2220210d1_sc13da.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>tm2220210d1_ex99-1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: tm2220210d1_ex99-1.htm

</DOCUMENT>
</SEC-DOCUMENT>