Patent US2623013A successfully refreshed from Google Patents.
US2623013A
Expired / Lapsed
US
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Ion-exchange resins from a vinyl pyridine or a vinyl quinoline and a vinyl ethinyl hydrocarbon
Assignee: Beazer East Inc
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Filing: 1949-09-24
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Granted: 1952-12-23
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Expires: 1969-09-24
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:42
CPC Classifications
C; C08; C08F; C08F26/00; C08F26/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
41 words
A WATER-INSOLUBLE, INFUSIBLE RESIN COMPRISING THE POLYMERIZATION PRODUCT OF A POLYMERIZABLE MASS COMPRISING (1) ABOUT 2-25 PERCENT BY WEIGHT OF A COPOLYMERIZABLE VINYL ETHINYL ALIPHATIC HYDROCARBON COMPOUND, AND (2) ABOUT 98-75 PERCENT BY WEIGHT OF A POLYMERIZABLE AMOUNT HAVING THE 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) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |