Patent US3369865A successfully refreshed from Google Patents.
US3369865A
Expired / Lapsed
US
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Process for ion exchanging crystalline zeolites
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1965-07-06
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Granted: 1968-02-20
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Mattox William Judson
- 👤 Gladrow Elroy Merle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:48
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A METHOD FOR INTRODUCING A DESIRED CATION INTO A CRYSTALLINE ALUMINO-SILICATE ZEOLITE BY ION EXCHANGE THEREOF WHICH COMPRISES CONTACTING A MOTHER LIQUOR SLURRY OF CRYSTALS OF SAID ZEOLITE WITH A CATION EXCHANGE RESIN CONTAINING SAID DESIRED CATION, AND RECOVERING ZEOLITE CRYSTALS IN THE DESIRED CATION FORM.
Claim 2
Independent Claim
46 words
A METHOD FOR INTRODUCING A DESIRED CATION INTO A CRYSTALLINE ALUMINO-SILICATE ZEOLITE BY ION EXCHANGE THEREOF WHICH COMPRISES CONTACTING A MOTHER LIQUOR SLURRY OF CRYSTALS OF SAID ZEOLITE WITH A CATION EXCHANGE RESIN CONTAINING SAID DESIRED CATION, AND RECOVERING ZEOLITE CRYSTALS IN THE DESIRED CATION FORM.
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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |