US3469417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque transmitting coupling
Assignee: Individual
•
Filing: 1967-12-07
•
Granted: 1969-09-30
•
Expires: 1987-12-07
Abstract
No abstract record available.
Inventors
- 👤 John Russell Wakelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:19
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D9/00; F16D9/06; Y; Y10; Y10S; Y10S464/00; Y10S464/902; Y10S464/903; Y10T; Y10T403/00; Y10T403/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE636110C
Cited
US988742A
Cited
GB203378A
Cited
GB235396A
Cited
US2457507A
Cited
US2884240A
Cited
US2901896A
Cited
US3063262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |