US1972779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible coupling
Assignee: GEORGE J KELLER
•
Filing: 1932-05-02
•
Granted: 1934-09-04
•
Expires: 1952-05-02
Abstract
No abstract record available.
Inventors
- 👤 Edward C Kradoska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:59
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/20; F16D3/22; F16D3/223; F16D3/226; F16D3/227; F16D2300/00; F16D2300/10
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) | 1937-09-03 | 1938-03-05 | 1938-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-09-03 | 1942-03-05 | 1942-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-09-03 | 1946-03-05 | 1946-09-04 | $7700.00 | Window Closed / Lapsed |