US3033800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impregnation of porous solids
Assignee: Gulf Research and Development Co
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Filing: 1959-04-10
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Granted: 1962-05-08
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Expires: 1979-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jr George E Elliott
- 👤 Bernard J Lerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:33
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01J23/70; B01J23/74; B01J23/755; B01J37/00; B01J37/02; B01J37/0201; B01J37/0203; B01J21/00; B01J21/02; B01J21/04; Y; Y10; Y10S; Y10S502/00; Y10S502/506; Y10S502/507; Y10S502/523
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE PROCESS FOR DEPOSITING A COMPOUND OF A CATALYTIC METAL UPON A POROUS SOLID WHICH COMPRISES PREPARING AN AQUEOUS SOLUTION WHICH CONTAINS THE COMPOUND OF A CATALYTIC METAL AND A DISSOLVED ORGANIC GELLABLE SUBSTANCE, CONTACTING THE POROUS SOLID WITH THE AQUEOUS SOLUTION WHILE THE GELLABLE SUBSTANCE REMAINS IN UNGELLED CONDITION, CONVERTING THE GELLABLE SUBSTANCE INTO A GEL IN THE PORES OF THE POROUS SOLID, DRYING THE POROUS SOLID WHILE MAINTAINING THE ORGANIC SUBSTANCE IN GELLED CONDITION AND CALCINING TO REMOVE THE DRIED GEL FROM THE POROUS SOLID BY COMBUSTION.
Claim 2
Dependent Claim
89 words
THE PROCESS FOR DEPOSITING A COMPOUND OF A CATALYTIC METAL UPON A POROUS SOLID WHICH COMPRISES PREPARING AN AQUEOUS SOLUTION WHICH CONTAINS THE COMPOUND OF A CATALYTIC METAL AND A DISSOLVED ORGANIC GELLABLE SUBSTANCE, CONTACTING THE POROUS SOLID WITH THE AQUEOUS SOLUTION WHILE THE GELLABLE SUBSTANCE REMAINS IN UNGELLED CONDITION, CONVERTING THE GELLABLE SUBSTANCE INTO A GEL IN THE PORES OF THE POROUS SOLID, DRYING THE POROUS SOLID WHILE MAINTAINING THE ORGANIC SUBSTANCE IN GELLED CONDITION AND CALCINING TO REMOVE THE DRIED GEL FROM THE POROUS SOLID BY COMBUSTION.
References Cited (Backward Citations)
US2695893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |