US3023286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic electric switches
Assignee: Lucas Support Services Ltd
•
Filing: 1959-06-11
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Granted: 1962-02-27
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Expires: 1979-06-11
Abstract
No abstract record available.
Inventors
- 👤 Bourne William George
- 👤 Hayter Charles Ewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:29
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/06; H01H50/00; H01H50/16; H01H50/18; H01H50/24; H01H50/28; H01H50/54; H01H50/546; H01H50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2354501A
Cited
US2438745A
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US2747044A
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US2857494A
Cited
US2890046A
Cited
US2884574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |