Patent US2433201A successfully refreshed from Google Patents.
US2433201A
Expired / Lapsed
US
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Machine for chamfering gears
Assignee: Individual
•
Filing: 1945-03-08
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Granted: 1947-12-23
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Expires: 1965-03-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:30
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/12; B23F23/1237; B23F19/00; B23F19/10; B23F19/101; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101113; Y10T409/101272
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1063160A
Cited
US1518239A
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US1724169A
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US1985409A
Cited
GB424433A
Cited
US2260918A
Cited
US2276627A
Cited
US2354181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |