US2865867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid contact material
Assignee: Shell Development Co
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Filing: 1956-12-26
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Granted: 1958-12-23
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Expires: 1976-12-26
Abstract
No abstract record available.
Inventors
- 👤 Dyke Ross E Van
- 👤 Richard P Trainer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:40
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/183; Y; Y10; Y10S; Y10S210/00; Y10S210/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A METHOD FOR PRODUCING A MOLECULAR SIEVE COMPOSITE WHICH COMPRISES COMPOSITING CRYSTALLITES OF A ZEOLITIC MOLECULAR SIEVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKALI, ALKALINE EARTH AND BOMINED ALKALI-ALKALINE EARTH METAL ALUMINUM SILICATE ZEOLITES IN A SUBSTANTIAL AMOUNT CORRESPONDING TO NO MORE THAN 65% BY WEIGHT OF THE TOTAL SOLIDS IN THE SUBSEQUENTLY CALCINED PRODUCT WITH GELATINOUS ALUMINUM HYDROXIDE SUBSTANTIALLY FREE OF IONS OF SOLUBLE SALTS AND DRYING THE COMPOSITE SO OBTAINED.
Claim 2
Independent Claim
73 words
A METHOD FOR PRODUCING A MOLECULAR SIEVE COMPOSITE WHICH COMPRISES COMPOSITING CRYSTALLITES OF A ZEOLITIC MOLECULAR SIEVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKALI, ALKALINE EARTH AND BOMINED ALKALI-ALKALINE EARTH METAL ALUMINUM SILICATE ZEOLITES IN A SUBSTANTIAL AMOUNT CORRESPONDING TO NO MORE THAN 65% BY WEIGHT OF THE TOTAL SOLIDS IN THE SUBSEQUENTLY CALCINED PRODUCT WITH GELATINOUS ALUMINUM HYDROXIDE SUBSTANTIALLY FREE OF IONS OF SOLUBLE SALTS AND DRYING THE COMPOSITE SO OBTAINED.
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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |