Patent US2644801A successfully refreshed from Google Patents.
US2644801A
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Sulfonated aryl acetylene resins
Assignee: Beazer East Inc
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Filing: 1949-09-24
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Granted: 1953-07-07
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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
2026-10-24 06:04
CPC Classifications
B; B01; B01J; B01J39/00; B01J39/08; B01J39/16; B01J39/18; B01J39/20; C; C08; C08F; C08F8/00; C08F8/34; C08F8/36; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A WATER-INSOLUBLE RESIN CONTAINING A PLURALITY OF SULFONIC ACID GROUPS, SAID GROUPS BEING ATTACHED TO AN INSOLUBLE, INFUSIBLE RESIN PREPARED BY THE POLYMERIZATION OF A POLYMERIZABLE MASS COMPRISING A POLYMERIZABLE ARYL ACETYLENE HYDROCARBON COMPOUND.
Claim 2
Dependent Claim
34 words
A WATER-INSOLUBLE RESIN CONTAINING A PLURALITY OF SULFONIC ACID GROUPS, SAID GROUPS BEING ATTACHED TO AN INSOLUBLE, INFUSIBLE RESIN PREPARED BY THE POLYMERIZATION OF A POLYMERIZABLE MASS COMPRISING A POLYMERIZABLE ARYL ACETYLENE HYDROCARBON COMPOUND.
References Cited (Backward Citations)
FR840756A
Cited
US2255396A
Cited
US2290547A
Cited
US2366007A
Cited
US2466675A
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US2518420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |