US2656322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and method of preparing same
Assignee: Phillips Petroleum Co
•
Filing: 1949-01-04
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Granted: 1953-10-20
•
Expires: 1969-01-04
Abstract
No abstract record available.
Inventors
- 👤 Jack F Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:51
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/0201; B01J37/0209; B01J27/00; B01J27/14; B01J27/16; B01J27/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A CATALYST CONSISTING ESSENTIALLY OF AT LEAST ONE METAL OF THE GROUP CONSISTING OF AL, CD, ZN, AND CU COATED WITH A SOLID MATERIAL OBTAINED BY CALCINING A MIXTURE OF AN ACID OF THE GROUP CONSISTING OF OXYGEN-CONTAINING ACIDS OF PHOSPHORUS, CHROMIC ACID, AND TUNGSTIC ACID AND THE REACTION PRODUCT OF SAID METAL AND SAID ACID.
Claim 2
Dependent Claim
56 words
A CATALYST CONSISTING ESSENTIALLY OF AT LEAST ONE METAL OF THE GROUP CONSISTING OF AL, CD, ZN, AND CU COATED WITH A SOLID MATERIAL OBTAINED BY CALCINING A MIXTURE OF AN ACID OF THE GROUP CONSISTING OF OXYGEN-CONTAINING ACIDS OF PHOSPHORUS, CHROMIC ACID, AND TUNGSTIC ACID AND THE REACTION PRODUCT OF SAID METAL AND SAID ACID.
References Cited (Backward Citations)
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US2434850A
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US2364970A
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US2434888A
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US2462938A
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US2467484A
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US2525107A
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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) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |