US3434577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch devices
Assignee: Individual
•
Filing: 1968-05-09
•
Granted: 1969-03-25
•
Expires: 1988-05-09
Abstract
No abstract record available.
Inventors
- 👤 Robert V Mathison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:55
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/025; F16D69/026; F16D11/00; F16D11/14; A; A44; A44B; A44B18/00; A44B18/0069; A44B18/0096; C; C08; C08L; C08L2201/00; C08L2201/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |