Patent US2690201A successfully refreshed from Google Patents.
US2690201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking nut
Assignee: Elastic Stop Nut Corp
•
Filing: 1949-12-20
•
Granted: 1954-09-28
•
Expires: 1969-12-20
Abstract
No abstract record available.
Inventors
- 👤 Charles A Fineran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:15
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/36; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/935
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US526308A
Cited
US1324012A
Cited
US786725A
Cited
US896358A
Cited
CH52769A
Cited
CH77681A
Cited
US1470528A
Cited
GB207907A
Cited
US2266961A
Cited
US2321466A
Cited
US2361979A
Cited
GB563825A
Cited
US2564511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |