US2274761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear cutter and method of cutting gears
Assignee: Gleason Works
•
Filing: 1937-04-17
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Granted: 1942-03-03
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Expires: 1957-04-17
Abstract
No abstract record available.
Inventors
- 👤 Wildhaber Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:07
CPC Classifications
B; B23; B23F; B23F9/00; B23F9/003; B23F1/00; B23F1/08; B23F21/00; B23F21/12; B23F21/22; B23F21/223; B23F21/226; B23F21/24; B23F21/245; B23F9/08; B23F9/10; F; F16; F16H; F16H55/00; F16H55/02; F16H55/08; F16H55/0846; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/14; Y; Y10; Y10T; Y10T407/00; Y10T407/17; Y10T407/1705; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/103816; Y10T409/103975; Y10T409/107791; Y10T409/108109; Y10T409/108268; Y10T74/00; Y10T74/19; Y10T74/19949; Y10T74/19958
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) | 1945-03-02 | 1945-09-01 | 1946-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-02 | 1949-09-01 | 1950-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-02 | 1953-09-01 | 1954-03-03 | $7700.00 | Window Closed / Lapsed |