Patent US2855484A successfully refreshed from Google Patents.
US2855484A
Expired / Lapsed
US
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Thermostat
Assignee: Penn Controls Inc
•
Filing: 1957-03-05
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Granted: 1958-10-07
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Expires: 1977-03-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth G Kreuter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:07
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H37/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2066511A
Cited
US2231111A
Cited
US2315533A
Cited
US2441960A
Cited
US2490073A
Cited
US2616994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |