US2987919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Over temperature control unit
Assignee: General Controls Co
•
Filing: 1957-01-29
•
Granted: 1961-06-13
•
Expires: 1977-01-29
Abstract
No abstract record available.
Inventors
- 👤 Edward F Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213; H01; H01H; H01H37/00; H01H37/02; H01H37/04; H01H37/043; Y; Y10; Y10S; Y10S236/00; Y10S236/06
Claims Analysis
Total Claims: 0
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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) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |