US2777638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic control valve
Assignee: Standard Thomson Corp
•
Filing: 1953-05-28
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Granted: 1957-01-15
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Expires: 1973-05-28
Abstract
No abstract record available.
Inventors
- 👤 Charles W Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:03
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/021; G05D23/022; Y; Y10; Y10S; Y10S236/00; Y10S236/05; Y10S33/00; Y10S33/19; Y10S60/00; Y10S60/912; Y10T; Y10T29/00; Y10T29/49; Y10T29/49758; Y10T29/4976
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2208149A
Cited
US2356958A
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US2419630A
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US2453851A
Cited
US2507466A
Cited
US2628781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |