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US1516477A
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Lost-motion-compensating means for gear-hobbing machines
Assignee: Pratt and Whitney Co Inc
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Filing: 1922-10-14
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Granted: 1924-11-18
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Expires: 1942-10-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph K Schofield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:28
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/54; B23Q5/56; B23F; B23F23/00; B23F23/10; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/100636; Y10T409/101431; Y10T409/10159; Y10T409/102544; Y10T409/102703
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) | 1927-11-18 | 1928-05-19 | 1928-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-11-18 | 1932-05-19 | 1932-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-11-18 | 1936-05-19 | 1936-11-18 | $7700.00 | Window Closed / Lapsed |