Patent US2184351A successfully refreshed from Google Patents.
Patent US2304148A successfully refreshed from Google Patents.
US2304148A
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Assignee: Gleason Works
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Filing: 1940-11-13
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Granted: 1942-12-08
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Expires: 1960-11-13
Abstract
No abstract record available.
Inventors
- 👤 Leonard O Carlsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:18
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/08; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/10954
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-12-07 | 1946-06-08 | 1946-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-12-07 | 1950-06-08 | 1950-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-12-07 | 1954-06-08 | 1954-12-08 | $7700.00 | Window Closed / Lapsed |