Patent US2920254A successfully refreshed from Google Patents.
US2920254A
Expired / Lapsed
US
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Solenoid device for use with gas valves
Assignee: General Controls Co
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Filing: 1957-07-18
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Granted: 1960-01-05
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Expires: 1977-07-18
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:30
CPC Classifications
H; H01; H01H; H01H36/00; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/088; H01F7/16; H01F7/1607; H01F7/1615; H01H35/00; H01H35/24; H01H35/40; H01F7/121; H01F7/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |