Patent US2915943A successfully refreshed from Google Patents.
US2915943A
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Method and apparatus for displacing a light beam
Assignee: CINCINNATI, University of, Research Foundation of
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Filing: 1955-08-30
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Granted: 1959-12-08
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Expires: 1975-08-30
Abstract
No abstract record available.
Inventors
- 👤 Glenn H Brown
- 👤 John F Dreyer
- 👤 Hyman R Lubowitz
- 👤 William H H Middendorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:36
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/29; G02F1/01; G02F1/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1770535A
Cited
US1923891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |