Patent US2665689A successfully refreshed from Google Patents.
US2923701A
Expired / Lapsed
US
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Composition comprising a linear copolymer of a quaternary ammonium compound and an ethylenically unsaturated copolymerizable compound
Assignee: Wyeth Holdings LLC
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Filing: 1955-05-02
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Granted: 1960-02-02
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Expires: 1975-05-02
Abstract
No abstract record available.
Inventors
- 👤 Walter H Schuller
- 👤 Walter M Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:36
CPC Classifications
C; C08; C08F; C08F226/00; C08F226/02; C08F226/04; Y; Y10; Y10S; Y10S526/00; Y10S526/923; Y10T; Y10T137/00; Y10T137/598; Y10T137/6154; Y10T137/6157
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A COMPOSITION COMPRISING A LINEAR COPOLYMER WHICH IS THE PRODUCT OF POLYMERIZATION OF A MIXTURE OF COPOLYMERIZABLE INGREDIENTS INCLUDING (1) A SINGLE QUATERNARY AMMONIUM COMPOUND REPRESENTS BY THE GENERAL FORMULA
Claim 2
Dependent Claim
30 words
A COMPOSITION COMPRISING A LINEAR COPOLYMER WHICH IS THE PRODUCT OF POLYMERIZATION OF A MIXTURE OF COPOLYMERIZABLE INGREDIENTS INCLUDING (1) A SINGLE QUATERNARY AMMONIUM COMPOUND REPRESENTS BY THE GENERAL FORMULA
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) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |