US2522117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strain measuring instrument
Assignee: Curtiss Wright Corp
•
Filing: 1945-04-30
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Granted: 1950-09-12
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Expires: 1965-04-30
Abstract
No abstract record available.
Inventors
- 👤 Oscar E Holt
- 👤 Carl A Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:25
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/04; G01L5/10; G01L5/106; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/225; G01L1/2262; G01L5/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB276426A
Cited
US1981153A
Cited
US2011931A
Cited
US2016420A
Cited
US2316975A
Cited
US2344642A
Cited
US2285580A
Cited
US2359245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |