US2051622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically operated switch
Assignee: SOLA ELECTRIC CO
•
Filing: 1935-07-01
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Granted: 1936-08-18
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Expires: 1955-07-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Sola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:14
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/36; H01H50/40; H01H50/18; H01H50/20; H01H50/22
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) | 1939-08-18 | 1940-02-17 | 1940-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-08-18 | 1944-02-17 | 1944-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-08-18 | 1948-02-17 | 1948-08-18 | $7700.00 | Window Closed / Lapsed |