US2771362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose fibrous products containing polymers of vinyloxyethylurea and method of producing them
Assignee: Rohm and Haas Co
•
Filing: 1954-02-09
•
Granted: 1956-11-20
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Expires: 1974-02-09
Abstract
No abstract record available.
Inventors
- 👤 Vincent J Moser
- 👤 Melamed Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:49
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
AS A NEW ARTICLE OF MANUFACTURE, A FIBROUS PRODUCT COMPRISING CELLULOSIC FIBERS AND HAVING INCORPORATED IN THE BODY THEREOF AN INITIALLY WATER-SOLUBLE POLYMER SELECTED FROM THE CLASS CONSISTING OF HOMOPOLYMERS OF VINYLOXYETHYLUREA AND COPOLYMERS OF VINYLOXETHYLUREA WITH 4-VINYL PYRIDINE.
Claim 2
Dependent Claim
39 words
AS A NEW ARTICLE OF MANUFACTURE, A FIBROUS PRODUCT COMPRISING CELLULOSIC FIBERS AND HAVING INCORPORATED IN THE BODY THEREOF AN INITIALLY WATER-SOLUBLE POLYMER SELECTED FROM THE CLASS CONSISTING OF HOMOPOLYMERS OF VINYLOXYETHYLUREA AND COPOLYMERS OF VINYLOXETHYLUREA WITH 4-VINYL PYRIDINE.
References Cited (Backward Citations)
US2338602A
Cited
US2601597A
Cited
US2655494A
Cited
US2689844A
Cited
US2683089A
Cited
US2694696A
Cited
US2694687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |