Patent US2834868A successfully refreshed from Google Patents.
US2834868A
Expired / Lapsed
US
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Temperature control system for cooking utensils
Assignee: Individual
•
Filing: 1956-03-19
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Granted: 1958-05-13
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Expires: 1976-03-19
Abstract
No abstract record available.
Inventors
- 👤 William L Greene
- 👤 Henry A Berliner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:04
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1481233A
Cited
US1431542A
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US1662817A
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US1813267A
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US1780631A
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US2058068A
Cited
US2020110A
Cited
GB725341A
Cited
US2712055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |