US2469930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary control device for thermostatic valves
Assignee: L M PAYNE Co
•
Filing: 1945-03-12
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Granted: 1949-05-10
•
Expires: 1965-03-12
Abstract
No abstract record available.
Inventors
- 👤 Lambert M Payne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:02
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1486817A
Cited
US1696410A
Cited
GB256408A
Cited
GB421900A
Cited
US2237766A
Cited
US2255543A
Cited
US2356958A
Cited
US2353610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |