US2385650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and machine for grinding toothed gears
Assignee: Individual
•
Filing: 1944-05-22
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Granted: 1945-09-25
•
Expires: 1964-05-22
Abstract
No abstract record available.
Inventors
- 👤 Rickenmann Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:40
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/10; B23F23/08; B23F23/085; B23F5/00; B23F5/02; B23F5/04; B23Q; B23Q5/00; B23Q5/54; B23Q5/56; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/10159; Y10T409/101749; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2554
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) | 1948-09-24 | 1949-03-26 | 1949-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-24 | 1953-03-26 | 1953-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-24 | 1957-03-26 | 1957-09-25 | $7700.00 | Window Closed / Lapsed |