Patent US3085072A successfully refreshed from Google Patents.
US3085072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion exchange resin
Assignee: —
•
Filing: —
•
Granted: 1963-04-09
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Expires: 1980-04-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:24
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/34; B; B01; B01J; B01J39/00; B01J39/08; B01J39/16; B01J39/18; B01J39/20; B01J41/00; B01J41/08; B01J41/12; B01J41/14; B01J47/00; B01J47/016; C08F8/18; C08F8/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
AN ION EXHANGE RESIN PREPARED BY CONTACTING, AT ABOUT 50*C., A MEMBER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF ACRYLATE ESTERS OF A CHLORINATED ALIPHATIC ALCOHOL AND COPOLYMERS OF SAID ESTERS WITH DIVINYL BENZENE, WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH HYDROSULFIDES IN SUCH AMOUNTS THAT ABOUT EQUIMOLAR QUANTITIES OF CHLORINE RADICAL AND HYDROSULFIDE RADICAL ARE PRESENT, WHEREBY CHLORINE RADICALS IN THE ALCOHOL MOIETY OF THE ESTER ARE REPLACED BY MERCAPTO GROUPS.
Claim 2
Dependent Claim
79 words
AN ION EXHANGE RESIN PREPARED BY CONTACTING, AT ABOUT 50*C., A MEMBER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF ACRYLATE ESTERS OF A CHLORINATED ALIPHATIC ALCOHOL AND COPOLYMERS OF SAID ESTERS WITH DIVINYL BENZENE, WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH HYDROSULFIDES IN SUCH AMOUNTS THAT ABOUT EQUIMOLAR QUANTITIES OF CHLORINE RADICAL AND HYDROSULFIDE RADICAL ARE PRESENT, WHEREBY CHLORINE RADICALS IN THE ALCOHOL MOIETY OF THE ESTER ARE REPLACED BY MERCAPTO GROUPS.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |