Patent US3212064A successfully refreshed from Google Patents.
US2853287A
Expired / Lapsed
US
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Motion-measuring system
Assignee: Research Corp
•
Filing: 1952-03-13
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Granted: 1958-09-23
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Expires: 1972-03-13
Abstract
No abstract record available.
Inventors
- 👤 Charles S Draper
- 👤 Claude L Emmerich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:19
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/13; G01P15/132; G01C; G01C19/00; G01C19/02; G01C19/34; G01C19/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2402012A
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US2598672A
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US2584222A
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US2726074A
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US2552722A
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US2591921A
Cited
US2634610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |