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US3379652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arsenophosphomolybdic acid catalyst compositions and process for their preparation
Assignee: Eastman Kodak Co
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Filing: 1967-04-28
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Granted: 1968-04-23
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Expires: 1987-04-28
Abstract
No abstract record available.
Inventors
- 👤 Howard S Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:40
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/188; B01J27/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A CATALYTIC CALCINED MIXTURE CONSISTING ESSENTIALLY OF (1) 1 TO 20 PERCENT BY WEIGHT OF AN OXIDE OF ARSENIC, (2) 5 TO 60 PERCENT BY WEIGHT OF A PHOSPHOMOLYBDIC ACID AND (3) A CARRIER, WHEREIN SAID OXIDE OF ARSENIC AND SAID PHOSPHOMOLYBDIC ACID ARE SUPPORTED ON SAID CARRIER.
Claim 2
Dependent Claim
48 words
A CATALYTIC CALCINED MIXTURE CONSISTING ESSENTIALLY OF (1) 1 TO 20 PERCENT BY WEIGHT OF AN OXIDE OF ARSENIC, (2) 5 TO 60 PERCENT BY WEIGHT OF A PHOSPHOMOLYBDIC ACID AND (3) A CARRIER, WHEREIN SAID OXIDE OF ARSENIC AND SAID PHOSPHOMOLYBDIC ACID ARE SUPPORTED ON SAID CARRIER.
References Cited (Backward Citations)
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Cited
US2547380A
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US2450675A
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US2798890A
Cited
US2881212A
Cited
US3190913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |