US2765983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostat valve means
Assignee: Bishop and Babcock Manufacturing Co
•
Filing: 1953-04-08
•
Granted: 1956-10-09
•
Expires: 1973-04-08
Abstract
No abstract record available.
Inventors
- 👤 Edward L Mayo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:30
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/123; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/8593; Y10T137/86493
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1784061A
Cited
US2065148A
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US2087037A
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US2137136A
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US2187886A
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US2336858A
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US2469930A
Cited
US2489209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |