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US2871573A
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Angle measuring instrument
Assignee: Individual
•
Filing: 1956-03-07
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Granted: 1959-02-03
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Expires: 1976-03-07
Abstract
No abstract record available.
Inventors
- 👤 Abraham W Schenker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:37
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/107; A61B5/1071; G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; A61B5/68; A61B5/6801; A61B5/6813; A61B5/6824; A61B5/683; A61B5/6831
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US334052A
Cited
US808372A
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US1401146A
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US2008481A
Cited
US2568143A
Cited
US2527961A
Cited
US2636283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |