US2821023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curvature gauge
Assignee: Schaeffler Aerospace USA Corp
•
Filing: 1953-10-02
•
Granted: 1958-01-28
•
Expires: 1973-10-02
Abstract
No abstract record available.
Inventors
- 👤 Bruce L Mims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:58
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1840538A
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US2581394A
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US2570298A
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US2451155A
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US2648912A
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US2620655A
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US2539027A
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US2620386A
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US2691887A
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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) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |