US2567273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and machine for cutting gears
Assignee: Gleason Works
•
Filing: 1947-08-01
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Granted: 1951-09-11
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Expires: 1967-08-01
Abstract
No abstract record available.
Inventors
- 👤 Leonard O Carlsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:04
CPC Classifications
B; B23; B23F; B23F5/00; B23F5/20; B23F5/205; B23F5/207; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/105883; Y10T409/106201; Y10T409/10636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |