US2175251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connection
Assignee: UTILITY PATENT TRUST NO 17 938
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Filing: 1937-10-06
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Granted: 1939-10-10
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Expires: 1957-10-06
Abstract
No abstract record available.
Inventors
- 👤 Charles E Carson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:30
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/10; H01R4/18; H01R4/20; H01R4/187; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174; Y10T29/49181; Y10T29/49185; Y10T29/49188; Y10T29/49192
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) | 1942-10-09 | 1943-04-10 | 1943-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-09 | 1947-04-10 | 1947-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-09 | 1951-04-10 | 1951-10-10 | $7700.00 | Window Closed / Lapsed |