Patent US2411401A successfully refreshed from Google Patents.
US2411401A
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Accelerometer
Assignee: Westinghouse Electric Corp
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Filing: 1942-07-28
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Granted: 1946-11-19
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Expires: 1962-07-28
Abstract
No abstract record available.
Inventors
- 👤 William P Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:49
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/09; G01P15/0907; G01N; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02827
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) | 1949-11-18 | 1950-05-20 | 1950-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-11-18 | 1954-05-20 | 1954-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-11-18 | 1958-05-20 | 1958-11-19 | $7700.00 | Window Closed / Lapsed |