US3718382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal imaging system in which an electrical field is created by an x-y address system
Assignee: Xerox Corp
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Filing: 1971-08-05
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Granted: 1973-02-27
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Expires: 1991-08-05
Abstract
Abstract A system transforming an optically negative liquid crystalline substance to an optically positive liquid crystalline mesophase by an applied electrical field, and an imaging system wherein the electrical field-induced transition images a liquid crystalline member.
Inventors
- 👤 J Wysocki
- 👤 R Madrid
- 👤 W Haas
- 👤 J Adams
- 👤 J Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:17
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1339
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
32 words
The method of claim 1 wherein the desired image areas are selectively and sequentially imaged by the application of electrical fields to the desired image areas by an electrical X-Y address system.
References Cited (Backward Citations)
US3627408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |