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US3492916A
Expired / Lapsed
US
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Apparatus and method for cutting a radius toothed gear
Assignee: Individual
•
Filing: 1968-01-22
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Granted: 1970-02-03
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Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 Dan R Cantrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:33
CPC Classifications
B; B23; B23F; B23F17/00; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/103816
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1355919A
Cited
US1364056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |