US3302001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time-temperature control devices
Assignee: Corning Glass Works
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Filing: 1964-07-02
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Granted: 1967-01-31
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Expires: 1984-07-02
Abstract
No abstract record available.
Inventors
- 👤 John F Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:38
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0225; G; G04; G04F; G04F3/00; G04F3/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
IN COMBINATION WITH AN ELECTRICAL HEATING SYSTEM INCLUDING TERMINAL MEANS FOR CONNECTING THE SYSTEM ACROSS A SOURCE OF ELECTRICAL CURRENT AND MEANS FORMING A SERIES CIRCUIT PATH THROUGH A THERMOSTATIC SWITCH, A HEATING ELEMENT, AND A TIMER SWITCH, THE HEATING ELEMENT BEING IN HEATING RELATION TO THE THERMOSTATIC SWITCH: A TIMER MOTOR INCLUDING A WINDING; A TRANSFER SWITCH; MEANS FORMING A CIRCUIT PATH CONNECTING SAID WINDING THROUGH SAID TRANSFER SWITCH IN NORMAL POSITION IN SHUNT RELATION TO SAID THERMOSTATIC SWITCH AND IN SERIES RELATION TO SAID HEATER ELEMENT AND TIMER SWITCH; MEANS FORMING A SERIES CIRCUIT PATH THROUGH SAID MOTOR WINDING, SAID TRANSFER SWITCH IN TRANSFERRED POSITION AND SAID TIMER SWITCH; AND CAM MEANS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |