Patent US1429563A successfully refreshed from Google Patents.
Patent US2643696A successfully refreshed from Google Patents.
US2643696A
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Domed lock nut with contractable core
Assignee: Individual
•
Filing: 1947-10-13
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Granted: 1953-06-30
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Expires: 1967-10-13
Abstract
No abstract record available.
Inventors
- 👤 Otto R Misch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:06
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/64; B21K1/70; B21K1/707; 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
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References Cited (Backward Citations)
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US1424277A
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US2021051A
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US2429832A
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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) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |