US2765228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulosic fibrous products and methods of producing them
Assignee: Rohm and Haas Co
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Filing: 1955-03-03
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Granted: 1956-10-02
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Expires: 1975-03-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur D Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:50
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/37; D21H17/375; D21H17/41; D21H17/44; D21H17/45; D21H17/455
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AS A NEW ARTICLE OF AMNUFACTURE, A FIBROUS PRODUCT CONTAINING CELLULOSIC FIBERS AND COMPRISING (A) A WATERSOLUBLE CONDENSATE OF A POLYMER OF MONOETHYLENICALLY UNSATURATED MONOMERIC MOLECULES COMPRISING AT LEAST 35 MOLE PERCENT OF AN ACID OF THE GROUP CONSISTING OF ACYLIC ACID, METHACRYLIC ACID, AND ITACONIC ACID WITH 1 MOLE PERCENT OT 250 MOLE PERCENT OF AT LEAST ONE ALKYLENE OXIDE SELECTED FROM ETHYLENE OXIDE AND PROPYLENE OXIDE, AND (B) A POLY-CATIONIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SUB-RESINOUS TO RESINOUS CONDENSATION PRODUCTS OF, AND POLYMERS OF, AN ORGANIC NITROGEN COMPOUND ANCHORING THE CONDENSATE TO THE FIBERS OF THE PRODUCT, THE RATIO OF THE CONDENSATE TO THE ANCHORING COMPOUND BEING FROM 4:1 TO 10:7.
Claim 2
Dependent Claim
115 words
AS A NEW ARTICLE OF AMNUFACTURE, A FIBROUS PRODUCT CONTAINING CELLULOSIC FIBERS AND COMPRISING (A) A WATERSOLUBLE CONDENSATE OF A POLYMER OF MONOETHYLENICALLY UNSATURATED MONOMERIC MOLECULES COMPRISING AT LEAST 35 MOLE PERCENT OF AN ACID OF THE GROUP CONSISTING OF ACYLIC ACID, METHACRYLIC ACID, AND ITACONIC ACID WITH 1 MOLE PERCENT OT 250 MOLE PERCENT OF AT LEAST ONE ALKYLENE OXIDE SELECTED FROM ETHYLENE OXIDE AND PROPYLENE OXIDE, AND (B) A POLY-CATIONIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SUB-RESINOUS TO RESINOUS CONDENSATION PRODUCTS OF, AND POLYMERS OF, AN ORGANIC NITROGEN COMPOUND ANCHORING THE CONDENSATE TO THE FIBERS OF THE PRODUCT, THE RATIO OF THE CONDENSATE TO THE ANCHORING COMPOUND BEING FROM 4:1 TO 10:7.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |