US2687576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically operated testing apparatus for gears and similar toothed elements
Assignee: Individual
•
Filing: 1950-06-17
•
Granted: 1954-08-31
•
Expires: 1970-06-17
Abstract
No abstract record available.
Inventors
- 👤 Mahr Carl Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:39
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US992926A
Cited
GB157090A
Cited
US1444470A
Cited
US2240184A
Cited
US2231702A
Cited
US2323267A
Cited
US2514716A
Cited
US2516748A
Cited
US2585528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |