US2927088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing catalysts
Assignee: Universal Oil Products Co
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Filing: 1956-11-29
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Granted: 1960-03-01
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Expires: 1976-11-29
Abstract
No abstract record available.
Inventors
- 👤 Michalko Edward
- 👤 Hoekstra James
- 👤 Robert M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:46
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J37/00; B01J37/02; B01J37/0201; B01J37/0203; B01J27/00; B01J27/06; B01J27/128; B01J27/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD FOR MANUFACTURING A NOBLE METAL COMPONENT-REFRACTORY INORGANIC OXIDE CATALYST WHICH COMPRISES COMMINGLING AN ORGANIC SEQUESTERING AGENT, SELECTED FROM THE GROUP CONSISTING OF CITRIC, OXALIC, TARTARIC, ACETIC AND TETRA-ACETIC ACIDS, WITH SAID REGRACTORY INORGANIC OXIDE IN A WEIGHT RATIO OF SAID SEQUESTERING AGENT TO SAID NOBLE METAL COMPONENT OF FROM ABOUT 1:2 TO ABOUT 3:1 AND IN THE PRESENCE OF AMMONIA IN AN AMOUNT TO INCREASE THE PH OF THE RESULTING MIXTURE TO A LEVEL OF ABUT 3.5.
Claim 2
Independent Claim
79 words
A METHOD FOR MANUFACTURING A NOBLE METAL COMPONENT-REFRACTORY INORGANIC OXIDE CATALYST WHICH COMPRISES COMMINGLING AN ORGANIC SEQUESTERING AGENT, SELECTED FROM THE GROUP CONSISTING OF CITRIC, OXALIC, TARTARIC, ACETIC AND TETRA-ACETIC ACIDS, WITH SAID REGRACTORY INORGANIC OXIDE IN A WEIGHT RATIO OF SAID SEQUESTERING AGENT TO SAID NOBLE METAL COMPONENT OF FROM ABOUT 1:2 TO ABOUT 3:1 AND IN THE PRESENCE OF AMMONIA IN AN AMOUNT TO INCREASE THE PH OF THE RESULTING MIXTURE TO A LEVEL OF ABUT 3.5.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |