Patent FR1065286A successfully refreshed from Google Patents.
Patent US2393727A successfully refreshed from Google Patents.
US2393727A
Expired / Lapsed
US
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Apparatus for manufacturing toothed elements
Assignee: Individual
•
Filing: 1942-02-20
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Granted: 1946-01-29
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Expires: 1962-02-20
Abstract
No abstract record available.
Inventors
- 👤 Earnest F Aber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:29
CPC Classifications
B; B23; B23F; B23F1/00; B23F1/06; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/107791; Y10T409/108109; Y10T409/108268; Y10T409/30; Y10T409/306664; Y10T409/306776; Y10T409/307; Y10T409/307168
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) | 1949-01-28 | 1949-07-30 | 1950-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-01-28 | 1953-07-30 | 1954-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-01-28 | 1957-07-30 | 1958-01-29 | $7700.00 | Window Closed / Lapsed |