Patent US3098138A successfully refreshed from Google Patents.
US3098138A
Expired / Lapsed
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Thermal control apparatus
Assignee: Honeywell Inc
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Filing: 1959-12-10
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Granted: 1963-07-16
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Expires: 1979-12-10
Abstract
No abstract record available.
Inventors
- 👤 Warren H Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:46
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
IN A THERMOSTAT HAVING A VARIABLE HEAT ANTICIPATION LEVEL, A BASE, A SPIRAL BIMETAL, A SWITCH ADAPTED TO CONTROL THE OPERATION OF A LOAD DEVICE, MEANS CONNECTING ONE END OF SAID BIMETAL TO SAID BASE, MEANS CONNECTING SAID SWITCH TO A FREE END OF SAID BIMETAL TO BE ACTUATED AS SAID BIMETAL IS EXPOSED TO A CHANGING TEMPERATURE, A FIRST CIRCUIT COMPRISING SAID BIMETAL WHEN SAID SWITCH IS CONNECTED TO SAID LOAD WHEREBY THE COMPLETE LENGTH OF SAID BIMETAL IS USED AS AN ELECTRICAL HEATER TO PROVIDE HEAT ANTICIPATION TO FALSE-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |