US2284636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for cutting gears
Assignee: Gleason Works
•
Filing: 1937-03-10
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Granted: 1942-06-02
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Expires: 1957-03-10
Abstract
No abstract record available.
Inventors
- 👤 Leonard O Carlsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:52
CPC Classifications
B; B23; B23F; B23F9/00; B23F9/003; B23F21/00; B23F21/24; B23F21/245; B23F23/00; B23F23/08; B23F23/12; B23F23/1293; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/103816; Y10T409/103975; Y10T409/105883
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) | 1945-06-01 | 1945-12-01 | 1946-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-01 | 1949-12-01 | 1950-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-01 | 1953-12-01 | 1954-06-02 | $7700.00 | Window Closed / Lapsed |