US2860495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible couplings
Assignee: Individual
•
Filing: 1955-06-07
•
Granted: 1958-11-18
•
Expires: 1975-06-07
Abstract
No abstract record available.
Inventors
- 👤 James A Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:58
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/005; F16C; F16C11/00; F16C11/04; F16C11/12; F16D3/50; F16D3/72; F16D3/74
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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |