US1390607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric contact device
Assignee: Westinghouse Air Brake Co
•
Filing: 1919-12-10
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Granted: 1921-09-13
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Expires: 1939-12-10
Abstract
No abstract record available.
Inventors
- 👤 Clyde C Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:47
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/22; H01R13/24; H01R13/2407; H01R13/2421; B; B61; B61G; B61G5/00; B61G5/06; B61G5/10
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) | 1924-09-12 | 1925-03-14 | 1925-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-09-12 | 1929-03-14 | 1929-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-09-12 | 1933-03-14 | 1933-09-13 | $7700.00 | Window Closed / Lapsed |