Patent CA536864A successfully refreshed from Google Patents.
Patent US3901828A successfully refreshed from Google Patents.
US3901828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation catalyst for combustibles in gas mixtures
Assignee: WC Heraus GmbH and Co KG
•
Filing: 1973-09-07
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Granted: 1975-08-26
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Expires: 1993-09-07
Abstract
Abstract A catalyst for the oxidation of combustible components in gas mixtures such as carbon monoxide and/or gaseous organic substances in automobile exhausts has the formula
Inventors
- 👤 Gerhard Mai
- 👤 Reiner Siepmann
- 👤 Franz Kummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:33
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; B01J23/38; B01J23/54; B01J23/56; F; F02; F02B; F02B1/00; F02B1/02; F02B1/04; Y; Y10; Y10S; Y10S502/00; Y10S502/525
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
34 words
CATALYST COMPOSITION FOR THE OXIDATION OF COMBUSTIBBLE GASEOUS COMPONENTS OF GAS MIXTURES OF CARBON MONOXIDE OR GASEOUS ORGANIC SUBSTANCES OR MIXTURES OF CARBON MONOXIDE AND GASEOUS ORGANIC SUBSTANCES IN AUTOMOTIVE EXHAUSTS COMPRISING THE FORMULA:
Claim 2
Dependent Claim
34 words
CATALYST COMPOSITION FOR THE OXIDATION OF COMBUSTIBBLE GASEOUS COMPONENTS OF GAS MIXTURES OF CARBON MONOXIDE OR GASEOUS ORGANIC SUBSTANCES OR MIXTURES OF CARBON MONOXIDE AND GASEOUS ORGANIC SUBSTANCES IN AUTOMOTIVE EXHAUSTS COMPRISING THE FORMULA:
Claim 3
Dependent Claim
8 words
Catalyst of claim 1 having the composition LaCo1/6Fe1/6Ni1/6Ru1/2O3.
Claim 4
Dependent Claim
8 words
Catalyst of claim 1 having the composition LaFe1/6Ni1/6Co1/6Ru1/6Ti1/3O3.
Claim 5
Dependent Claim
8 words
Catalyst of claim 1 having the composition LaFe1/6Ni1/6Co1/6V1/2O3.
Claim 6
Dependent Claim
8 words
Catalyst of claim 1 having the composition LaCu1/2Mn1/2O3.
Claim 7
Dependent Claim
8 words
Catalyst of claim 1 having the composition LaFe1/6Ni1/6Co1/6Ti1/2O3.
Claim 8
Dependent Claim
8 words
Catalyst of claim 1 having the composition LaCo1/2Ru1/4Pt1/4O3.
Claim 9
Dependent Claim
8 words
Catalyst of claim 1 having the composition LaNi1/2Mo1/2O3.
Claim 10
Dependent Claim
8 words
Catalyst of claim 1 applied to a support.
Claim 11
Dependent Claim
11 words
Catalyst of claim 9 wherein the support has a honeycomb-tube structure.
Claim 12
Dependent Claim
11 words
Catalyst of claim 1 uniformly mixed with a ceramic binding agent.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |