US2561534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauge for checking toothed machine elements, such as gears and splines
Assignee: Individual
•
Filing: 1948-11-29
•
Granted: 1951-07-24
•
Expires: 1968-11-29
Abstract
No abstract record available.
Inventors
- 👤 John J Parker
- 👤 London T Morawski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:17
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1336189A
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US1392313A
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US1473748A
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US1384710A
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US1579108A
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US1478954A
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FR651226A
Cited
US1863673A
Cited
US2032856A
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US1879559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |