Patent US4198981A successfully refreshed from Google Patents.
US2529486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient fair-lead
Assignee: Individual
•
Filing: 1943-03-09
•
Granted: 1950-11-14
•
Expires: 1963-03-09
Abstract
No abstract record available.
Inventors
- 👤 William S Clarkson
- 👤 Jack H Rupe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:52
CPC Classifications
F; F42; F42B; F42B22/00; F42B22/10; Y; Y10; Y10S; Y10S277/00; Y10S277/906; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20462
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1314660A
Cited
US1321775A
Cited
US887877A
Cited
US1072928A
Cited
US2249609A
Cited
US2190880A
Cited
US2311427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |