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EXPIRED USPTO USPTO

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

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USPTO Filing History

Key events recorded for this trademark application

1972-04-28 — Application filed
1979-05-14 — Registered - sec. 8 (6-yr) accepted & sec. 15 ack.
1992-11-20 — Registered - sec. 9 filed/check record for sec. 8
1993-02-04 — Registered and renewed (first renewal - 10 yrs)
2004-01-24 — Cancelled sec. 8 (10-yr)/expired section 9
2004-01-24 — Final status recorded

Owner Information

KEYSTONE CARBON COMPANY
ST. MARYS , PA

Correspondent

ROBERT D YEAGER KIRKPATRICK & LOCKHART
1500 OLIVER BLDG
PITTSBURGH, PA 15222
UNITED STATES

Filing Details

Filing Date:
1972-04-28

Status Date:
2004-01-24

Category:
Electronics & Software

Filing Year:
1972

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