US3093446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified spinning solutions, methods for producing fibers and films, and filmy products produced therefrom
Assignee: Rohm and Haas Co
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Filing: 1962-10-16
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Granted: 1963-06-11
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Expires: 1982-10-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Allewelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:29
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; D01F2/10; C; C08; C08B; C08B11/00; C08B11/02; C08B11/04; C08B11/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
29 words
A METHOD OF PRODUCING A CROSS-LINKED REGENERATED CELLULOSE FILMY PRODUCT WHICH COMPRISES ADDING N-METHYLOLACRYLAMIDE TO AN ALKALINE VISCOSE SOLUTION TO FORM THEREIN A MODIFIED CELLULOSIC COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2363019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |