US2779742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite materials and processes for making the same
Assignee: Gulf Research and Development Co
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Filing: 1952-09-18
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Granted: 1957-01-29
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Expires: 1972-09-18
Abstract
No abstract record available.
Inventors
- 👤 Paul H Emmett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:36
CPC Classifications
B; B01; B01J; B01J21/00; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR THE PREPARATION OF A COMPOSITE COMPRISING PREPARATING AN ACTIVATED SYNTHETIC SILICA-ALUMINA SUPPORT, CONTACTING THE SUPPORAT WITH A SOLUTION CONTAINING HYDROGEN IONS AND BARIUM IONS TO INTRODUCE 0.25 TO 2.0 MILLIEQUIVALENTS OF BARIUM PER GRAM OF SUPPORT ONTO THE SUPPORT IN BASE EXCHANGE POSITIONS, THE SUM OF THE PH OF THE SOLUTION AFTER THE CONTACT HAS BEEN COMPLETED AND THE BRIGGS LOGARITHM OF THE MOLAR BARIUM ION CONCENTRATION OF THE SOLUTION AT THE INITIAL TIME OF CONTACT BEING IN THE RANGE OF 4 TO 8, AND WASHING THE UNEXCHANGED BARIUM IONS FROM THE SUPPORT.
Claim 2
Dependent Claim
96 words
A PROCESS FOR THE PREPARATION OF A COMPOSITE COMPRISING PREPARATING AN ACTIVATED SYNTHETIC SILICA-ALUMINA SUPPORT, CONTACTING THE SUPPORAT WITH A SOLUTION CONTAINING HYDROGEN IONS AND BARIUM IONS TO INTRODUCE 0.25 TO 2.0 MILLIEQUIVALENTS OF BARIUM PER GRAM OF SUPPORT ONTO THE SUPPORT IN BASE EXCHANGE POSITIONS, THE SUM OF THE PH OF THE SOLUTION AFTER THE CONTACT HAS BEEN COMPLETED AND THE BRIGGS LOGARITHM OF THE MOLAR BARIUM ION CONCENTRATION OF THE SOLUTION AT THE INITIAL TIME OF CONTACT BEING IN THE RANGE OF 4 TO 8, AND WASHING THE UNEXCHANGED BARIUM IONS FROM THE SUPPORT.
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) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |