Patent US763568A successfully refreshed from Google Patents.
Patent US2480976A successfully refreshed from Google Patents.
US2480976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft coupling
Assignee: Wellman Co
•
Filing: 1946-05-08
•
Granted: 1949-09-06
•
Expires: 1966-05-08
Abstract
No abstract record available.
Inventors
- 👤 Charles J Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:01
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/02; F16D3/06; Y; Y10; Y10T; Y10T403/00; Y10T403/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1136091A
Cited
US1788565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |