US2430375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrading machine for chamfering gears
Assignee: Individual
•
Filing: 1944-02-17
•
Granted: 1947-11-04
•
Expires: 1964-02-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Upton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:19
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/12; B23F23/1293; B23F19/00; B23F19/10; Y; Y10; Y10S; Y10S451/00; Y10S451/90; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2111045A
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US2227491A
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US2176316A
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US2294733A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-03 | 1951-05-05 | 1951-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-03 | 1955-05-05 | 1955-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-03 | 1959-05-05 | 1959-11-04 | $7700.00 | Window Closed / Lapsed |