US3661444A
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US
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Compounded liquid crystal cells
Assignee: RCA Corp
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Filing: 1969-12-02
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Granted: 1972-05-09
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Expires: 1989-12-02
Abstract
Abstract A linear array of compounded liquid crystal cells comprises a first plurality of linearly aligned cells formed between the opposite surfaces of a pair of parallel plates and a second plurality of linearly aligned (compounding) cells formed between a surface of one of the pair of plates and a third parallel plate. The cells are filled with liquid crystals, and each liquid crystal cell is defined by a pair of oppositely disposed lighttransmitting electrodes on the opposite surfaces, respectively, of the plates that form the cell.
Inventors
- 👤 Dennis Lee Matthies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:36
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/22; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1339; G02F1/13394; G02F1/1343; G02F1/134309; G02F1/1345; G02F1/1347
Claims Analysis
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |