Trademark search for:

WORKING MODEL

EXPIRED USPTO USPTO

No active United States Patent and Trademark Office (USPTO) registrations found, based on publicly available USPTO trademark records.

Trademark records may change over time. For the most up-to-date trademark status, domain availability, and social handle checks, run a live search.

Live search · Most up-to-date results

Also check across:

USPTO Filing History

Key events recorded for this trademark application

1991-11-08 — Application filed
1992-02-26 — Final disposition recorded
1992-08-31 — Correspondence received in law office
1993-02-08 — Office action issued
1993-08-09 — Use amendment filed
1993-08-27 — Amendment to use processing complete
1993-08-30 — Use amendment accepted
1993-08-30 — Approved for registration supplemental register
1993-11-09 — Registered-supplemental register
2000-12-29 — Cancelled sec. 8 (6-yr)
2000-12-29 — Final status recorded

Owner Information

Knowledge Revolution
San Francisco , CA

Correspondent

ANDREW P BRIDGES WILSON, SONSINI, GOODRICH & ROSATI
TWO PALO ALTO SQ
PALO ALTO, CA 94306
UNITED STATES

Filing Details

Filing Date:
1991-11-08

Status Date:
2000-12-29

Category:
Electronics & Software

Filing Year:
1991

Disclaimer: This page is informational only and does not constitute legal advice. Trademark availability depends on jurisdiction, usage, and legal interpretation.