Patent US3140148A successfully refreshed from Google Patents.
US3140148A
Expired / Lapsed
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Method of treating exhaust gases with urania-containing catalysts
Assignee: Individual
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Filing: 1961-07-26
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Granted: 1964-07-07
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Expires: 1981-07-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence J E Hofer
- 👤 Robert B Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:13
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/12; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; B01J23/16; B01J23/24; B01J23/26; B01J23/70; B01J23/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A METHOD FOR OXIDIZING COMBUSTIBLE CONSTITUENTS OF EXHAUSE GAS AND FUMES CONTAINING HYDROCARBONS, PARTIALLY OXIDIZED HYDROCARBONS, CARBON MONOXIDE, AND THE LIKE, WHICH COMPRISES PASSING HOT EXHAUSE GAS TOGETHER WITH ADDED OXYGEN OVER A CATALYST CONSISTING OF AN INERT POROUS CARRIER MASS HAVING DISPERSED THEREON A MEMBER OF THE GROUP CONSISTING OF (A) URANIA, AND (B) URANIA PLUS A PROMOTER SELECTED FROM THE GROUP CONSISTING OF FERRIC OXIDE, CHRONIC OXIDE, COPPER OXIDE, AND MIXTURES THEREOF.
Claim 2
Independent Claim
74 words
A METHOD FOR OXIDIZING COMBUSTIBLE CONSTITUENTS OF EXHAUSE GAS AND FUMES CONTAINING HYDROCARBONS, PARTIALLY OXIDIZED HYDROCARBONS, CARBON MONOXIDE, AND THE LIKE, WHICH COMPRISES PASSING HOT EXHAUSE GAS TOGETHER WITH ADDED OXYGEN OVER A CATALYST CONSISTING OF AN INERT POROUS CARRIER MASS HAVING DISPERSED THEREON A MEMBER OF THE GROUP CONSISTING OF (A) URANIA, AND (B) URANIA PLUS A PROMOTER SELECTED FROM THE GROUP CONSISTING OF FERRIC OXIDE, CHRONIC OXIDE, COPPER OXIDE, AND MIXTURES THEREOF.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |