US3475073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accidental-motion compensation by triple reflection
Assignee: Optical Research and Development Corp
•
Filing: 1966-11-07
•
Granted: 1969-10-28
•
Expires: 1986-11-07
Abstract
No abstract record available.
Inventors
- 👤 William E Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:44
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/64; G02B27/646
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1639229A
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US2571937A
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US2906161A
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US2959088A
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US3026620A
Cited
US2981141A
Cited
GB869617A
Cited
US2944783A
Cited
US3158674A
Cited
FR1386114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |