Patent US4956071A successfully refreshed from Google Patents.
Patent US5204424A successfully refreshed from Google Patents.
US5204424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductive polymers derived from aromatic heterocyclic compounds substituted by an ether-type group
Assignee: Solvay SA
•
Filing: 1988-12-06
•
Granted: 1993-04-20
•
Expires: 2008-12-06
Abstract
Abstract Electrically conductive polymers containing repeat units derived from five-membered aromatic heterocyclic monomers substituted, in the 3 position relative to the heteroatom, by an ether-type substituent linked to the heterocyclic ring by an alkylene radical containing at least two carbon atoms. The invention also relates to certain monomers enabling the above-mentioned conductive polymers to be obtained.
Inventors
- 👤 Jean Roncali
- 👤 Robert Garreau
- 👤 Didier Delabouglise
- 👤 Marc Lemaire
- 👤 Francis Garnier
- 👤 Etienne Hannecart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:58
CPC Classifications
C; C08; C08F; C08F34/00; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/32; C07D207/33; C07D207/333; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/40; C07D307/42; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/16; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
29 words
An electrically conductive polymer containing repeat units derived from 3-(3',6'-dioxaheptyl) thiophene prepared by electrochemical polymerization by an anodic oxidation in a polar solvent in the presence of an electrolyte.
Claim 2
Dependent Claim
29 words
An electrically conductive polymer containing repeat units derived from 3-(3',6'-dioxaheptyl) thiophene prepared by electrochemical polymerization by an anodic oxidation in a polar solvent in the presence of an electrolyte.
Claim 3
Dependent Claim
11 words
An electrically conductive polymer containing repeat units derived from 3-(3',6'-dioxaheptyl) thiophene.
Claim 4
Dependent Claim
11 words
An electrically conductive polymer containing repeat units derived from 3-(3',6'-dioxaheptyl) thiophene.
References Cited (Backward Citations)
US3574072A
Cited
EP0096612A1
Cited
US4543402A
Cited
US4781443A
Cited
DE3701495A1
Cited
EP0240063A1
Cited
EP0253594A2
Cited
US4992559A
Cited
US4837096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-19 | 1996-10-19 | 1997-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-19 | 2000-10-19 | 2001-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-19 | 2004-10-19 | 2005-04-20 | $7700.00 | Window Closed / Lapsed |