US2749802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaving cutter for gears
Assignee: Michigan Tool Co
•
Filing: 1952-09-30
•
Granted: 1956-06-12
•
Expires: 1972-09-30
Abstract
No abstract record available.
Inventors
- 👤 William R Carlsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:27
CPC Classifications
B; B23; B23F; B23F19/00; B23F19/06; B23F19/066; B23F23/00; B23F23/12; B23F23/1237; B23F7/00; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/10477; Y10T409/105088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2227491A
Cited
US2556142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |