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US3475074A
Expired / Lapsed
US
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Accidental-motion compensation with collimated light
Assignee: Optical Research and Development Corp
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Filing: 1967-06-01
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Granted: 1969-10-28
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Expires: 1987-06-01
Abstract
No abstract record available.
Inventors
- 👤 William E Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:14
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/64; G02B27/646
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB226163A
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GB232759A
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US1639229A
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CH223983A
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GB599955A
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US2829557A
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US2939363A
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US2981141A
Cited
GB878463A
Cited
FR1254479A
Cited
US3153689A
Cited
US3378326A
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 |