Patent US3825511A successfully refreshed from Google Patents.
US3825511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroconductive resins and process of preparation
Assignee: Monsanto Co
•
Filing: 1972-05-15
•
Granted: 1974-07-23
•
Expires: 1992-05-15
Abstract
Abstract ELECTROCONDUCTIVE CATIONIC RESINS PREPARED BY THE REACTION OF A 1,4-DIHALOALKENE-2 COMPOUND AND A DI(TERTIARY AMINE). THE RESINS ARE QUATERNARY AMMODIUM COMPOUDS. THEY MAY BE PREPARED IN AQUEOUS MEDIUM. THEY HAVE UTILITY IN PROVIDING ELECTRONCONDUCTIVITY TO SHEET MATERIAL USED IN ELECTROGRAPHIC PRINTING.
Inventors
- 👤 A Markhart
- 👤 J Santer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:30
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; C; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213; C08G73/0226; C08L; C08L29/00; C08L29/02; C08L29/04; C08L79/00; C08L79/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |