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TROPON

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

1931-07-17 — Application filed
1972-03-29 — Registered and renewed (second renewal - 20 yrs)
1993-01-04 — Expired sec. 9
1993-01-04 — Final status recorded

Owner Information

TROPONWERKE DINKLAGE & CO.
COLOGNE-MULHEIM DE

Filing Details

Filing Date:
1931-07-17

Status Date:
1993-01-04

Category:
Pharmaceuticals

Filing Year:
1931

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