US2764648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid operated switch with dashpot
Assignee: Watford Electric and Manufacturing Co Ltd
•
Filing: 1953-05-22
•
Granted: 1956-09-25
•
Expires: 1973-05-22
Abstract
No abstract record available.
Inventors
- 👤 Gascoine Arthur Cecil
- 👤 Craven Royston Arthu Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:04
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/24; H01H71/34; H01H71/345; H01H50/00; H01H50/86; H01H50/88
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1389140A
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USRE16551E
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US1212322A
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US1604669A
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GB377816A
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US2182450A
Cited
GB533040A
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US2308660A
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US2443338A
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US2493371A
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US2622707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |