USPTO serial 73139825
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This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.
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| Class | Description | Status | First use |
|---|---|---|---|
| 017 | LIGHTWEIGHT DRY INSULATING COMPOSITION TO BE MIXED WITH WATER TO PROVIDE AN INSULATING SEAL FOR CHECKER CHAMBER DOORS, SLAG POCKET DOORS, FAN TAILS AND CHECKER CHAMBERS ON THE OUTSIDE AS WELL AS OUTSIDE OF SIDEWALLS OF SLAG POCKETS AND CHECKER CHAMBERS OF METALLURGICAL FURNACES AND ANNELALING FURNACES OF ALL TYPE AND KIND; CAN ALSO BE USED AS AN INSULATOR IN ELECTRICAL CONTACT WITH SWITCH BOXES | EXPIRED | May 27, 1958 |
CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
| Date | Code | Event | What it means |
|---|---|---|---|
| Mar 2, 1999 | EXRG | EXPIRED SEC. 9 | — |
| Aug 29, 1983 | C15A | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |