Patent US2862902A successfully refreshed from Google Patents.
US2862902A
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Polymerization of 3-vinylpyridines and latex produced thereby
Assignee: Phillips Petroleum Co
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Filing: 1953-08-10
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Granted: 1958-12-02
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Expires: 1973-08-10
Abstract
No abstract record available.
Inventors
- 👤 James E Pritchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:44
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/62; C08F20/02; C08F20/08; C08F220/00; C08F220/02; C08F220/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
47 words
THE PROCESS WHICH COMPRISES POLYMERIZING IN AQUEOUS SOLUTION A SALT OF A MONOMERIC 3-VINYLPYRIDINE WITH AN ACIDIC MATERIAL, SAID ACIDIC MATERIAL HAVING AN IONIZATION CONSTANT AT LEAST 1.0X10-10 AND LESS THAN 1.36X10-4 AND A WATER SOLUBILITY OF AT LEAST 0.2 GRAM PER 100CC. OF WATER AT 20*C.
Claim 2
Dependent Claim
47 words
THE PROCESS WHICH COMPRISES POLYMERIZING IN AQUEOUS SOLUTION A SALT OF A MONOMERIC 3-VINYLPYRIDINE WITH AN ACIDIC MATERIAL, SAID ACIDIC MATERIAL HAVING AN IONIZATION CONSTANT AT LEAST 1.0X10-10 AND LESS THAN 1.36X10-4 AND A WATER SOLUBILITY OF AT LEAST 0.2 GRAM PER 100CC. OF WATER AT 20*C.
Claim 3
Dependent Claim
10 words
A PROCESS FOR POLYMERIZING A PYRIDINE COMPOUND OF THE STRUCTURE
Claim 4
Dependent Claim
10 words
A PROCESS FOR POLYMERIZING A PYRIDINE COMPOUND OF THE STRUCTURE
References Cited (Backward Citations)
US2491472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |