US2746303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sine-cosine mechanism
Assignee: Librascope Inc
•
Filing: 1952-02-25
•
Granted: 1956-05-22
•
Expires: 1972-02-25
Abstract
No abstract record available.
Inventors
- 👤 William E Pollock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:14
CPC Classifications
F; F16; F16H; F16H35/00; F16H35/16; G; G06; G06G; G06G3/00; G06G3/06; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18352
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US80001A
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US358529A
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US486055A
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US1199398A
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US2166975A
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US2329743A
Cited
US2312668A
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US2360762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |