US3759861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ic or amphoteric surface active agent polymer complex of a carboxy containing polymer and a nonionic cation
Assignee: Individual
•
Filing: 1970-12-18
•
Granted: 1973-09-18
•
Expires: 1990-12-18
Abstract
Abstract A POLYMER COMPLEX OBTAINED BY REACTING A VINYL POLYMER HAVING CARBOXYL GROUPS AND AT LEAST ONE NONIONIC, CATIONIC OR AMPHOTERIC SURFACE ACTIVE AGENT. THE COMPLEX IS WATER-SOLUBLE AND USEFUL AS A SIZING AGENT FOR THE PAPER INDUSTRY. IT IS ALSO USEFUL AS A FLUOCCULANT OR A HEAT-SENSITIVE OR PRESSURE-SENSITIVE ADHESIVE.
Inventors
- 👤 W Shimokawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:28
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C08; C08F; C08F8/00; C09; C09J; C09J133/00
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |