US2654729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizable compositions comprising an unsaturated quaternary ammonium compound and polymerization products thereof
Assignee: Wyeth Holdings LLC
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Filing: 1952-07-28
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Granted: 1953-10-06
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Expires: 1972-07-28
Abstract
No abstract record available.
Inventors
- 👤 John A Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:27
CPC Classifications
C; C08; C08F; C08F26/00; C08F26/02; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A POLYMERIZABLE COMPOSITION COMPRISING (1) A QUATERNARY AMMONIUM COMPOUND REPRESENTED BY THE GENERAL FORMULA
Claim 2
Dependent Claim
14 words
A POLYMERIZABLE COMPOSITION COMPRISING (1) A QUATERNARY AMMONIUM COMPOUND REPRESENTED BY THE GENERAL FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |