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US2769050A
Expired / Lapsed
US
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Push-button electric switches
Assignee: Lucas Support Services Ltd
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Filing: 1955-04-25
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Granted: 1956-10-30
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Expires: 1975-04-25
Abstract
No abstract record available.
Inventors
- 👤 Bourne William George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:48
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; H; H01; H01H; H01H13/00; H01H13/50; H01H13/56; H01H13/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2047950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |