Patent US3625869A successfully refreshed from Google Patents.
US3625869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of increasing the resistivity of a dipole suspension
Assignee: Individual
•
Filing: 1967-07-17
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Granted: 1971-12-07
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Expires: 1987-07-17
Abstract
Abstract An electrically responsive light-controlling device in the form of a sealed thin tanklike member having a fluid suspension of light reflective dipoles therein. Electrically conductive layers are disposed on each major side of the tanklike member to selectively impress an electrical potential across the suspension to align the dipoles. A method of increasing the resistivity of the dipole suspension is also disclosed.
Inventors
- 👤 Alvin M Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:11
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/17; G02F1/172
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
The method according to claim 1 in which the dipole suspension contains Herapathite crystals.
Claim 2
Dependent Claim
29 words
The method according to claim 1 in which the high-boiling solvent is a plasticizer selected from the group consisting of dibutyl phthalate, di iso octyl adipate and dibutyl sebacate.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |