US2481371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-temperature strain gauge and method of making same
Assignee: Douglas Aircraft Co Inc
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Filing: 1945-07-25
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Granted: 1949-09-06
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Expires: 1965-07-25
Abstract
No abstract record available.
Inventors
- 👤 William D Van Dyke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:11
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2287; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087; Y10T29/49098; Y10T29/49103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075906A
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US1962617A
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US2154261A
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US2280257A
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US2327935A
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US2367211A
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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) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |