US2565381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring angular body movements
Assignee: Individual
•
Filing: 1949-08-15
•
Granted: 1951-08-21
•
Expires: 1969-08-15
Abstract
No abstract record available.
Inventors
- 👤 Jack R Leighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:31
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/107; A61B5/1071; A61B5/68; A61B5/6801; A61B5/683; A61B5/6831
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2383527A
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US920718A
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US1120737A
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US1401146A
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US2022452A
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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) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |