US1891101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring drive
Assignee: General Electric Co
•
Filing: 1931-11-23
•
Granted: 1932-12-13
•
Expires: 1951-11-23
Abstract
No abstract record available.
Inventors
- 👤 Count George E Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:14
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/30; H01H3/3042; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/18; Y10T74/18056; Y10T74/18064; Y10T74/18856; Y10T74/18864; Y10T74/20; Y10T74/20006
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) | 1935-12-13 | 1936-06-13 | 1936-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-12-13 | 1940-06-13 | 1940-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-12-13 | 1944-06-13 | 1944-12-13 | $7700.00 | Window Closed / Lapsed |