Patent US2278576A successfully refreshed from Google Patents.
US2278576A
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US
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Method of relieving gear cutters
Assignee: Gleason Works
•
Filing: 1938-08-08
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Granted: 1942-04-07
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Expires: 1958-08-08
Abstract
No abstract record available.
Inventors
- 👤 Wildhaber Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:10
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/02; B24B3/08; B24B3/022; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/30112; Y10T409/302968; Y10T409/303248
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) | 1945-04-06 | 1945-10-06 | 1946-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-04-06 | 1949-10-06 | 1950-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-04-06 | 1953-10-06 | 1954-04-07 | $7700.00 | Window Closed / Lapsed |