Patent US4240139A successfully refreshed from Google Patents.
Patent US843276A successfully refreshed from Google Patents.
US843276A
Expired / Lapsed
US
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Automatic electric switch.
Assignee: Individual
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Filing: 1904-07-16
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Granted: 1907-02-05
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Expires: 1924-07-16
Abstract
No abstract record available.
Inventors
- 👤 William F Irish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:12
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/36; H01H21/40; H01H21/42; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18856; Y10T74/18864; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20606
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) | 1910-02-04 | 1910-08-06 | 1911-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-02-04 | 1914-08-06 | 1915-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-02-04 | 1918-08-06 | 1919-02-05 | $7700.00 | Window Closed / Lapsed |