US3674342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal display device including side-by-side electrodes on a common substrate
Assignee: RCA Corp
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Filing: 1970-12-29
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Granted: 1972-07-04
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Expires: 1990-12-29
Abstract
Abstract A PAIR OF OPPOSITELY DISPOSED SUBSTRATES SANDWICH A FILM OF LIQUID CRYSTAL MATERIAL THEREBETWEEN. SIDE BY SIDE ELECTRODES, BETWEEN WHICH A VOLTAGE IS APPLIED TO SWITCH THE LIGHT TRANSMITTING CHARACTERISTICS OF THE LIQUID CRYSTAL MATERIAL, ARE DISPOSED ON A SINGLE ONE OF THE SUBSTRATES.
Inventors
- 👤 Joseph Anthony Castellano
- 👤 Ronald Norman Friel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:22
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1343; G02F1/134309; G02F1/134363
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |