US1398477A
Expired / Lapsed
US
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Gear-cutting machine
Assignee: JAMES E GLEASON
•
Filing: 1918-02-21
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Granted: 1921-11-29
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Expires: 1938-02-21
Abstract
No abstract record available.
Inventors
- 👤 Tibbetts Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:05
CPC Classifications
B; B23; B23F; B23F9/00; B23F9/08; B23F9/10; B23F21/00; B23F21/12; B23F21/22; B23F21/223; B23F21/226; B23F23/00; B23F23/12; B23F23/1237; B23F23/125; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/107791; Y10T409/108109; Y10T409/108268; Y10T409/108427
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) | 1924-11-28 | 1925-05-30 | 1925-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-11-28 | 1929-05-30 | 1929-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-11-28 | 1933-05-30 | 1933-11-29 | $7700.00 | Window Closed / Lapsed |