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Shuttingdown

RIDGEFIELD ACQUISITION CORP

Blank Checks · CARSON CITY · NV

No longer listed

High confidence (85%)

Updated Oct 18, 2026, 12:04 AM

What is happening

Derived by rule set status-rules-2026.09.7

The company deregistered its securities and stopped filing with the SEC. Companies do that when they are acquired, when they go private, and when they fail; the filing does not say which.

Latest material event: RIDGEFIELD ACQUISITION CORP deregistered its securities (Feb 3, 2026)

The business

What a source says the company did. A classification is not a description of operations.

SEC classifies this registrant as Blank Checks (SIC 6770). That code means a development-stage company with no specific operating business, or one whose stated plan is to merge with or acquire a business that has not yet been identified. It describes the registration; a completed merger does not rewrite the code.

SEC Company Submissions

Timeline

Every material event, newest first. History is never overwritten.

  1. RIDGEFIELD ACQUISITION CORP deregistered its securities

    Feb 3, 2026

    Registration withdrawn

    • SEC EDGAR — “15-12G 1 tm264931d2_1512g.htm FORM 15-12G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 000-16335 RIDGEFIELD ACQUISITION CORP. (Exact name of registrant as specified in its charter) Address: 732 S 6 th St., Suite R Las Vegas, NV 89101 Telephone Number: (510) 244-0424 (Address, including zip code, and telephone number, in…”

Company information

Founded
—
Employees (estimate)
—
Industry
Blank Checks
Subindustry
—
SEC CIK
0000812152
Website
—
LinkedIn
—
Headquarters
CARSON CITY, NV
Also known as
BIO MEDICAL AUTOMATION INC, OZO DIVERSIFIED AUTOMATION INC /CO/
Legal entities
RIDGEFIELD ACQUISITION CORP

Sources

Every material source used to build this profile.

  • SEC Company Submissions (TIER 1 · UNVERIFIED)

    RIDGEFIELD ACQUISITION CORP — Blank Checks (SIC 6770) — CARSON CITY, NV
    View source record
  • SEC EDGAR (TIER 1 · UNVERIFIED)

    15-12G 1 tm264931d2_1512g.htm FORM 15-12G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 000-16335 RIDGEFIELD ACQUISITION CORP. (Exact name of registrant as specified in its charter) Address: 732 S 6 th St., Suite R Las Vegas, NV 89101 Telephone Number: (510) 244-0424 (Address, including zip code, and telephone number, in…
    View source record

Status history

Every derived status, with the rule that produced it.

  • NO_LONGER_LISTED → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:30 AM

    The company deregistered its securities and stopped filing with the SEC. Companies do that when they are acquired, when they go private, and when they fail; the filing does not say which.

  • DISTRESS_SIGNAL → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:13 AM

    The company deregistered its securities and stopped filing with the SEC. Companies do that when they are acquired, when they go private, and when they fail; the filing does not say which.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 15, 2026, 12:32 PM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 14, 2026, 04:45 PM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • UNKNOWN → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 04:04 AM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.