US2497923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for forming teeth of spiral or hypoid bevel gears
Assignee: Individual
•
Filing: 1943-01-11
•
Granted: 1950-02-21
•
Expires: 1963-01-11
Abstract
No abstract record available.
Inventors
- 👤 Peter P Bazarnic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:07
CPC Classifications
B; B23; B23F; B23F21/00; B23F21/12; B23F21/22; B23F21/223; B23F21/226; Y; Y10; Y10T; Y10T407/00; Y10T407/17; Y10T407/1705; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/103816; Y10T409/103975
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1685442A
Cited
US1686054A
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US1727740A
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US1667299A
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US1812384A
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US2268326A
Cited
US2270003A
Cited
US2274761A
Cited
US2342232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |