Patent US1696151A successfully refreshed from Google Patents.
US1696151A
Expired / Lapsed
US
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Push-button-switch construction
Assignee: Francis Keil & Son Inc
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Filing: 1925-10-10
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Granted: 1928-12-18
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Expires: 1945-10-10
Abstract
No abstract record available.
Inventors
- 👤 Staedeli Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-12-18 | 1932-06-18 | 1932-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-12-18 | 1936-06-18 | 1936-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-12-18 | 1940-06-18 | 1940-12-18 | $7700.00 | Window Closed / Lapsed |