Patent US2876064A successfully refreshed from Google Patents.
US2876064A
Expired / Lapsed
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Prevention of catalyst poisoning
Assignee: MSA Safety Inc
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Filing: 1954-02-02
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Granted: 1959-03-03
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Expires: 1974-02-02
Abstract
No abstract record available.
Inventors
- 👤 William P Yant
- 👤 John P Strange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:28
CPC Classifications
C; C10; C10L; C10L3/00; C10L3/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN THE CATALYTIC COMBUSTION OF COMBUSTIBLE GASES CONTAMINATED WITH COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ARSENIC, SILICON AND ANTIMONY COMPOUNDS WHICH ARE OXIDIZABLE TO PRODUCE NONVOLATILE REACTION PRODUCTS, A METHOD OF PREVENTING CATALYST POISONING BY SAID NONVOLATILE REACTION PRODUCTS, WHICH COMPRISES REACTING WITH SAID PRODUCTS AT LEAST ONE FLUORINATED HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF FLUOROTULENE, FLUOROBENZENE, FLUOROBROMOBENZENE AND DIFLUORODICHLOROMETHANE TO PRIDUCE A VOLATILE FLUROINE COMPOUND.
Claim 2
Dependent Claim
68 words
IN THE CATALYTIC COMBUSTION OF COMBUSTIBLE GASES CONTAMINATED WITH COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ARSENIC, SILICON AND ANTIMONY COMPOUNDS WHICH ARE OXIDIZABLE TO PRODUCE NONVOLATILE REACTION PRODUCTS, A METHOD OF PREVENTING CATALYST POISONING BY SAID NONVOLATILE REACTION PRODUCTS, WHICH COMPRISES REACTING WITH SAID PRODUCTS AT LEAST ONE FLUORINATED HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF FLUOROTULENE, FLUOROBENZENE, FLUOROBROMOBENZENE AND DIFLUORODICHLOROMETHANE TO PRIDUCE A VOLATILE FLUROINE COMPOUND.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |