US4820022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal antidazzle mirror
Assignee: Tokai Rika Co Ltd
•
Filing: 1986-07-16
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Granted: 1989-04-11
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Expires: 2006-07-16
Abstract
Abstract A liquid crystal antidazzle mirror comprising discharging electrodes respectively provided at electrodes of liquid crystal electrodes, a grounding electrode opposed to the discharging electrodes for discharging a static electricity charged in the liquid crystal section between the discharging electrodes and the grounding electrode. Thus, the antidazzle mirror can protect itself against a static electricity.
Inventors
- 👤 Hiroshi Demura
- 👤 Kazumi Hayashi
- 👤 Yasuo Oyama
- 👤 Sadao Kokubu
- 👤 Kouji Takizawa
- 👤 Shigeru Iguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:17
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/08; B60R1/083; B60R1/088; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/13306
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
47 words
A liquid crystal antidazzle mirror comprising; discharging electrodes respectively provided at liquid crystal electrodes of a liquid crystal element, and a groundig electrode opposed to the discharging electrodes for discharging static electricity charged in the liquid crystal section element between the discharging electrodes and the grounding electrode.
Claim 2
Dependent Claim
47 words
A liquid crystal antidazzle mirror comprising; discharging electrodes respectively provided at liquid crystal electrodes of a liquid crystal element, and a groundig electrode opposed to the discharging electrodes for discharging static electricity charged in the liquid crystal section element between the discharging electrodes and the grounding electrode.
Claim 3
Dependent Claim
20 words
The liquid crystal antidazzle mirror according to claim 1, wherein two grounding electrodes are respectively opposed to said discharging electrodes.
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US3943427A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |