US3561916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulosic textile materials are cross-linked with n-methylolacrylamide using one catalyst and a single reaction step
Assignee: Wyeth Holdings LLC
•
Filing: 1967-09-07
•
Granted: 1971-02-09
•
Expires: 1987-09-07
Abstract
Abstract A METHOD FOR IMPARTING A DURABLE PRESS FINISH TO CELLULOSIC TEXTILE MATERIALS BY TREATING WITH N-METHYLOLACRYLAMIDE AND ZINC NITRATE AND HEATING TO CURE AND EFFECT CROSS-LINKING THE TEXTILE FINISH FOR PERFORMING THE METHOD AND THE RESULTING CELLULOSIC TEXTILE MATERIAL.
Inventors
- 👤 William Frederick Baitinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:18
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/41; D06M13/412
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |