US3448177A
Expired / Lapsed
US
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Process for the manufacture of conducting polymers by treating polymeric compound containing basic groups with mixture of 7,7,8,8-tetracyanoquinodimethane and alpha,alpha,alpha',alpha'-tetracyano-p-xylene
Assignee: Imperial Chemical Industries Ltd
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Filing: 1966-10-10
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Granted: 1969-06-03
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Eric Paul Goodings
- 👤 John Graham Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:12
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/121; C; C08; C08F; C08F8/00; C08F8/30; C08F8/44; C08F2800/00; C08F2800/10; C08F2810/00; C08F2810/20; C08F2810/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3346444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |