US3037843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zeolites from clay minerals
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-12-10
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Granted: 1962-06-05
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Expires: 1978-12-10
Abstract
No abstract record available.
Inventors
- 👤 Mason Ralph Burgess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:14
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2815
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
AN IMPROVED PROCESS FOR THE PREPARATION OF CRYSTALLINE ZEOLITIC ADSORBENTS HAVING MOLECULAR SIEVE PROPERTIES WHICH COMPRISES REACTING A PERMUTITIC ACID AT TEMPERATURES OF FROM ABOUT 180 TO 220*F. WITH A DILUTE SOLUTION OF AN ALKALINE REAGENT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES AND ALKALI METAL SILICATES FOR A PERIOD OF TIME TO PRECIPITATE A CRYSTALLINE ZEOLITE HAVING UNIFORM PORE OPENINGS.
Claim 2
Dependent Claim
63 words
AN IMPROVED PROCESS FOR THE PREPARATION OF CRYSTALLINE ZEOLITIC ADSORBENTS HAVING MOLECULAR SIEVE PROPERTIES WHICH COMPRISES REACTING A PERMUTITIC ACID AT TEMPERATURES OF FROM ABOUT 180 TO 220*F. WITH A DILUTE SOLUTION OF AN ALKALINE REAGENT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES AND ALKALI METAL SILICATES FOR A PERIOD OF TIME TO PRECIPITATE A CRYSTALLINE ZEOLITE HAVING UNIFORM PORE OPENINGS.
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) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |