Patent US3170758A successfully refreshed from Google Patents.
US3170758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of purifying exhaust gases
Assignee: Sinclair Research Inc
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Filing: 1960-09-01
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Granted: 1965-02-23
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Expires: 1980-09-01
Abstract
No abstract record available.
Inventors
- 👤 Donald L Honerkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:56
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; F; F01; F01N; F01N13/00; F01N13/009; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/206; F01N2610/00; F01N2610/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A METHOD OF PURIFYING EXHAUST GASES CONSISTING ESSENTIAL OF CARBON MONOXIDE, NITROGEN, OXIDES OF NITROGEN, OLEFINIC HYDROCARBONS, STEAM AND CARBON DIOXIDE WHICH COMPRISES PASSING THE EXHAUST GASES INTO CONTACT WITH AN IRON OXIDE CATALYST AT A TEMPERATURE OF ABOUT 600 TO 800*F. TOCOVERT AT LEAST ABOUT 25 VOLUME PERCENT OF THE CARBON MONOXIDE TO CARBON DIOXIDE AND PRODUCE HYDROGEN ADN PASSING THE RESULTING HYDROGEN-CONTAINING EFFLUENT INTO CONTACT WITH A PLATINUM CATALYST AT A TEM-
Claim 2
Independent Claim
74 words
A METHOD OF PURIFYING EXHAUST GASES CONSISTING ESSENTIAL OF CARBON MONOXIDE, NITROGEN, OXIDES OF NITROGEN, OLEFINIC HYDROCARBONS, STEAM AND CARBON DIOXIDE WHICH COMPRISES PASSING THE EXHAUST GASES INTO CONTACT WITH AN IRON OXIDE CATALYST AT A TEMPERATURE OF ABOUT 600 TO 800*F. TOCOVERT AT LEAST ABOUT 25 VOLUME PERCENT OF THE CARBON MONOXIDE TO CARBON DIOXIDE AND PRODUCE HYDROGEN ADN PASSING THE RESULTING HYDROGEN-CONTAINING EFFLUENT INTO CONTACT WITH A PLATINUM CATALYST AT A TEM-
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |