US3385796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for oxidation of hydrocarbons
Assignee: Petro Tex Chemical Corp
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Filing: 1965-10-21
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Granted: 1968-05-28
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Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Ralph O Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:53
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/195; B01J27/198
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A CATALYST WHICH COMPRISES A CATALYTIC COMPOSITION OF VANADIUM, PHOSPHORNS, OXYGEN AND COPPER DEPOSITED ON A CARRIER IN AN ATOMIC RATIO OF ABOUT 1.1 TO 1.8 ATOMS OF PHOSPHORUS PER ATOM OF VANADIUM AND ABOUT 0.005 TO 0.3 ATOM OF COPPER PER ATOM OF VANADIUM.
Claim 2
Dependent Claim
45 words
A CATALYST WHICH COMPRISES A CATALYTIC COMPOSITION OF VANADIUM, PHOSPHORNS, OXYGEN AND COPPER DEPOSITED ON A CARRIER IN AN ATOMIC RATIO OF ABOUT 1.1 TO 1.8 ATOMS OF PHOSPHORUS PER ATOM OF VANADIUM AND ABOUT 0.005 TO 0.3 ATOM OF COPPER PER ATOM OF VANADIUM.
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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |