US1493256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible driving shaft
Assignee: COVENTRY CHAIN Co Ltd
•
Filing: 1922-03-07
•
Granted: 1924-05-06
•
Expires: 1942-03-07
Abstract
No abstract record available.
Inventors
- 👤 Fraser William Petrie
- 👤 Young James Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:56
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/02; F16C1/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1927-05-06 | 1927-11-05 | 1928-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-05-06 | 1931-11-05 | 1932-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-05-06 | 1935-11-05 | 1936-05-06 | $7700.00 | Window Closed / Lapsed |