US2670335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anion-exchange resins from an aminated alkylene aryl acetylene
Assignee: Beazer East Inc
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Filing: 1952-11-06
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Granted: 1954-02-23
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Expires: 1972-11-06
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 11:10
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F8/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A WATER-INSOLUBLE RESIN CONTAINING A PLURALITY OF GROUPS OF THE FORMULA-A-NR3OH IN WHICH A IS AN ALKYLENE GROUP AND R IS A MEMBER OF THE CLASS CONSISTING OF ALKYL AND ARALKYL GROUPS, SAID GROUPS BEING ATTACHED TO AN INSOLUBLE, INFUSIBLE RESIN PREPARED BY THE POLYMERIZATION OF A POLYMERIZABLE MASS COMPRISING A POLYMERIZABLE ARYL ACETYLENE HYDROCARBON.
Claim 2
Dependent Claim
55 words
A WATER-INSOLUBLE RESIN CONTAINING A PLURALITY OF GROUPS OF THE FORMULA-A-NR3OH IN WHICH A IS AN ALKYLENE GROUP AND R IS A MEMBER OF THE CLASS CONSISTING OF ALKYL AND ARALKYL GROUPS, SAID GROUPS BEING ATTACHED TO AN INSOLUBLE, INFUSIBLE RESIN PREPARED BY THE POLYMERIZATION OF A POLYMERIZABLE MASS COMPRISING A POLYMERIZABLE ARYL ACETYLENE HYDROCARBON.
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) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |