US2870668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut thread with pitch difference relative to bolt thread to provide good thread bearing under load
Assignee: Individual
•
Filing: 1953-06-16
•
Granted: 1959-01-27
•
Expires: 1973-06-16
Abstract
No abstract record available.
Inventors
- 👤 Rene E Flahaut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:34
CPC Classifications
F; F16; F16B; F16B33/00; F16B33/02; Y; Y10; Y10S; Y10S411/00; Y10S411/917; Y10S411/924; Y10S411/929; Y10S411/937
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US613777A
Cited
US1529161A
Cited
US1922689A
Cited
US2005348A
Cited
US2059853A
Cited
US2382748A
Cited
US2333290A
Cited
US2406070A
Cited
US2567483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |