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Patent US2690914A successfully refreshed from Google Patents.
US2690914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mandrel
Assignee: Individual
•
Filing: 1951-02-15
•
Granted: 1954-10-05
•
Expires: 1971-02-15
Abstract
No abstract record available.
Inventors
- 👤 George F Bryant
- 👤 Raymond C Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:21
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/40; B23B31/404; B23B31/4046; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1054; Y10T279/1058; Y10T279/1083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1588787A
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US1563636A
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US2018452A
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US2374192A
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US2373907A
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US2436526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |