US2923700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of a bis ethylenically unsaturated sulfonium compound
Assignee: Wyeth Holdings LLC
•
Filing: 1956-10-10
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Granted: 1960-02-02
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Expires: 1976-10-10
Abstract
No abstract record available.
Inventors
- 👤 John A Price
- 👤 Walter H Schuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:56
CPC Classifications
C; C08; C08F; C08F28/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A COMPOSITION COMPRISING A LINEAR COPOLYMER OBTAINED BY POLYMERIZATION OF A MIXTURE OF COPOLYMERIZABLE INGREDIENTS INCLUDING (1) A BIS ETHYLENICALLY UNSATURATED SULFONIUM COMPOUND REPRESENTS BY THE GENERAL FORMULA
Claim 2
Dependent Claim
28 words
A COMPOSITION COMPRISING A LINEAR COPOLYMER OBTAINED BY POLYMERIZATION OF A MIXTURE OF COPOLYMERIZABLE INGREDIENTS INCLUDING (1) A BIS ETHYLENICALLY UNSATURATED SULFONIUM COMPOUND REPRESENTS BY THE GENERAL FORMULA
References Cited (Backward Citations)
US2768990A
Cited
US2729622A
Cited
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 |