Patent US2544400A successfully refreshed from Google Patents.
US2544400A
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US
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Strain measuring instrument
Assignee: Curtiss Wright Corp
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Filing: 1944-01-19
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Granted: 1951-03-06
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Expires: 1964-01-19
Abstract
No abstract record available.
Inventors
- 👤 William A Sourwine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:46
CPC Classifications
G; G01; G01M; G01M5/00; G01M5/0041; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/225; G01M5/0083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1665397A
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US1939067A
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US1961965A
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US2133670A
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US2077833A
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US2114298A
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US2229009A
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US2339579A
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US2329841A
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US2389615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |