Patent US3523160A successfully refreshed from Google Patents.
US3523160A
Expired / Lapsed
US
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Optical scanning device having a constant optical path length
Assignee: RTX Corp
•
Filing: 1967-08-03
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Granted: 1970-08-04
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Expires: 1987-08-03
Abstract
No abstract record available.
Inventors
- 👤 Roland Willey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:22
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/02; H04N1/00; H04N1/04; H04N1/12; H04N1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2021889A
Cited
US2072528A
Cited
US2443258A
Cited
US3389218A
Cited
US3360659A
Cited
US3270132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |