Patent US2709469A successfully refreshed from Google Patents.
US2709469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weldable lock nut
Assignee: Grip Nut Co
•
Filing: 1949-06-03
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Granted: 1955-05-31
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Expires: 1969-06-03
Abstract
No abstract record available.
Inventors
- 👤 Chester D Tripp
- 👤 Lawrence W Kass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:42
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/06; F16B37/061; A; A61; A61M; A61M31/00; B; B21; B21K; B21K1/00; B21K1/64; B21K1/70; B21K1/701; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |