US2962341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscose modification
Assignee: EIDP Inc
•
Filing: 1956-05-14
•
Granted: 1960-11-29
•
Expires: 1976-05-14
Abstract
No abstract record available.
Inventors
- 👤 Cox Norman Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:30
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; D01F2/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A PROCESS FOR PRODUCING A REGENERATED CELLULOSE STRUCTURE HAVING IMPROVED FATIGUE RESISTANCE WHICH COMPRISES ADDING TO THE VISCOSE AT LEAST 0.06% BY WEIGHT, BASED ON THE WEIGHT OF THE RESULTANT VISCOSE, OF AN ETHER HAVING THE FORMULA:
Claim 2
Dependent Claim
37 words
A PROCESS FOR PRODUCING A REGENERATED CELLULOSE STRUCTURE HAVING IMPROVED FATIGUE RESISTANCE WHICH COMPRISES ADDING TO THE VISCOSE AT LEAST 0.06% BY WEIGHT, BASED ON THE WEIGHT OF THE RESULTANT VISCOSE, OF AN ETHER HAVING THE FORMULA:
References Cited (Backward Citations)
US2065668A
Cited
US2040712A
Cited
GB541099A
Cited
US2393817A
Cited
US2535044A
Cited
US2860480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |