Patent US2122219A successfully refreshed from Google Patents.
US2122219A
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Hobbing machine
Assignee: CLEVELAND HOBBING MACHINE CO
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Filing: 1936-01-02
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Granted: 1938-06-28
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Expires: 1956-01-02
Abstract
No abstract record available.
Inventors
- 👤 Otis E Staples
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:56
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/12; B23F23/1237; B23F23/1243; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/10159; Y10T409/102544
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) | 1941-06-27 | 1941-12-27 | 1942-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-06-27 | 1945-12-27 | 1946-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-06-27 | 1949-12-27 | 1950-06-28 | $7700.00 | Window Closed / Lapsed |