USPTO serial 72313926
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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 |
|---|---|---|---|
| 034 | HEAT TRANSFER APPARATUS COMPRISING COIL, TUBE, AND PLATE-FIN HEAT EXCHANGERS FOR LIQUIDS AND GASES; GAS FIRED STEAM GENERATING PLANTS; STEAM BOILERS; STEAM CONDENSERS, ENGINE EXHAUST HEAT RECUPERATORS AND REGENERATORS; VENTILATING APPARATUS COMPRISING FANS AND BLOWERS AND CONTROLS THEREFOR; AIR CONDITIONERS AND CONTROLS THEREFOR; SPACE CAPSULE AND SPACE SUIT PRESSURIZATION AND VENTILATION SYSTEMS AND EQUIPMENT AND COMPONENT PARTS THEREOF; CARBON DIOXIDE AND CONTAMINANT REMOVAL EQUIPMENT FOR AIR AND WATER PURIFICATION; ODOR AND WATER ABSORPTION EQUIPMENT FOR VENTILATING AIR; THERMOELECTRIC HEAT PUMP SYSTEMS AND COMPONENTS; THERMOELECTRIC SYSTEMS AND COMPONENTS; TOTAL ENERGY SYSTEMS AND COMPONENTS FOR SPACE HEATING, LIGHTING AND VENTILATING; AND PORTABLE AND TRANSPORTABLE SYSTEMS AND COMPONENTS FOR PROVIDING VENTILATION AND HEATING OR COOLING OF COMPARTMENTS OF GROUNDED AIRCRAFT | EXPIRED | Oct 9, 1940 |
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 |
|---|---|---|---|
| Nov 4, 1992 | EXRG | EXPIRED SEC. 9 | — |
| Feb 28, 1977 | C15A | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |