US3676063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing synthetic crystalline zeolitic sodium aluminosilicate
Assignee: CROSFIELD CHEMICALS COMPANY A DIVISION OF INDOPCO Inc A CORP OF DELAWARE
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Filing: 1971-03-11
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Granted: 1972-07-11
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Expires: 1991-03-11
Abstract
Abstract CRYSTALLINE ZEOLITIC SODIUM ALUMINOSILICATES ARE PREPARED BY REACTING SOURCES OF SILICA, ALUMINA, AND SODIUM OXIDE IN AN AQUEOUS MEDIUM IN THE PRESENCE OF GLUCONATE IN AN AMOUNT SUFFICIENT TO SUPPRESS SIDE REACTIONS AND ENHANCE THE FORMATION OF SYNTHETIC FAUJASITE.
Inventors
- 👤 Arpad Elo Jr
- 👤 Frank R Broersma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:26
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2838; C01B33/2853; Y; Y10; Y10S; Y10S423/00; Y10S423/21
Claims Analysis
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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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |