US2566566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torsion indicating device
Assignee: Individual
•
Filing: 1945-12-19
•
Granted: 1951-09-04
•
Expires: 1965-12-19
Abstract
No abstract record available.
Inventors
- 👤 Edgar T Howes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:51
CPC Classifications
G; G01; G01L; G01L3/00; G01L3/02; G01L3/04; G01L3/10; G01L3/101; G01L3/102; G01L3/105; G01L3/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1425190A
Cited
GB442441A
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US2173039A
Cited
GB482081A
Cited
US2359125A
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US2260036A
Cited
US2392293A
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US2365564A
Cited
US2397935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |