US3155871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoothing the liquid in a light valve projector by means of electron beam
Assignee: General Electric Co
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Filing: 1961-03-10
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Granted: 1964-11-03
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
- 👤 William E Good
- 👤 Thomas T True
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:21
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N5/00; H04N5/74; H04N5/7416; H04N5/7425
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
IN A PROJECTION SYSTEM, MEANS FOR PRODUCING AN ELECTRON BEAM, A LIGHT MODULATING LIQUID HAVING A SURFACE DISPOSED IN THE PATH OF SAID BEAM, MEANS FOR DEFLECTING SAID ELECTRON BEAM OVER AN AREA OF SAID SURFACE PERIODICALLY IN LINES SIMILARLY DIRECTED WITH SUCCESSIVE LINES DISPLACED FROM ONE ANOTHER ALONG AND ORTHOGONAL THERETO FORM A RASTER ON SAID AREA, MECHANICAL MEANS FOR TRANSPORTING SAID LIQUID THROUGH SAID AREA IN THE DIRECTION OF DEFLECTION OF SAID ELECTRON BEAM, AND MEANS ASSOCIATED WITH SAID ELECTRON BEAM FOR INCREASING THE DENSITY OF CHARGE ON SAID LIQUID AT THE PERIPHERY OF SAID AREA FACING THE DIRECTION OF TRANSPORT OF SAID LIQUID.
References Cited (Backward Citations)
US2391451A
Cited
US2957942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |