US3588774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostat
Assignee: CAROLINA PRODUCTION ENTERPRISES Inc A SC CORP
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Filing: 1969-02-05
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Granted: 1971-06-28
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Expires: 1989-02-05
Abstract
Abstract A THERMOSTAT IS PROVIDED WITH A HEATING ELEMENT ADHERED OVER AN AREA OF THE ROOM-TEMPERATURE SENSING BIMETAL, AND THE BIMETAL IS ARRANGED TO OPERATE A SNAP SWITCH THAT CONTROLS THE CURRENT SUPPLY TO AN ELECTRIC HEATER FOR THE ROOM IN WHICH THE THERMOSTAT MONITORS THE AMBIENT TEMPERATURE. THE ADHERED HEATING ELEMENT OPERATES NOT MERELY AS A CONVENTIONAL ANTICIPATOR BUT DEVELOPS SHORTER ON-AND-OFF CYCLE TIMES OF CURRENT SUPPLY TO THE ROOM ELECTRIC HEATER, REDUCING TEMPERATURE SWINGS AND REDUCING DROOP.
Inventors
- 👤 Frank Caveney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:47
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/12; H01H37/18; H01H37/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |