US3549244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision prism oscillating mechanism
Assignee: United States Department of the Navy
•
Filing: 1969-01-27
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Granted: 1970-12-22
•
Expires: 1989-01-27
Abstract
No abstract record available.
Inventors
- 👤 Allen A Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:03
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/18; G02B7/1805; G01; G01C; G01C25/00; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18856
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2920529A
Cited
US3156759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |