US2664246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic valve operating in response to temperature changes
Assignee: General Controls Co
•
Filing: 1949-01-03
•
Granted: 1953-12-29
•
Expires: 1969-01-03
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:34
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/024; G05D23/026; G05D23/027; G05D23/12; G05D23/125; G05D23/126; G05D23/127; G05D23/128
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1875511A
Cited
FR404009A
Cited
US1058102A
Cited
US1208130A
Cited
US1103667A
Cited
US1216116A
Cited
US1647734A
Cited
US1693842A
Cited
US1588411A
Cited
US1640243A
Cited
US1671178A
Cited
US1741548A
Cited
US2004597A
Cited
US2058868A
Cited
US2089848A
Cited
US2121977A
Cited
US2144754A
Cited
US2216531A
Cited
US2249623A
Cited
US2237399A
Cited
US2242718A
Cited
US2290093A
Cited
US2279519A
Cited
US2413513A
Cited
US2484156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |