USPTO trademark record

BOROSIL

Dead mark · Owner OHIO FERRO-ALLOYS CORPORATION · Classes 6

Mark details

Owner: OHIO FERRO-ALLOYS CORPORATION
Serial number: 71460479
Registration number: 0403413
Status: CANCELLED - SECTION 8 (dead)
Classes: 6 (Metal goods)
Filed: 1943-05-07
Registered: 1943-09-21
Goods / services: FERRO-ALLOYS-NAMELY, AN ALLOY OF BORON, SILICON, AND IRON

Register data as of 2026-11-07. Records can trail live filings — check the official USPTO search for the latest status before filing.

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