US3061403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of purifying monatomic inert gases
Assignee: Airco Inc
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Filing: 1959-05-25
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Granted: 1962-10-30
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Expires: 1979-05-25
Abstract
No abstract record available.
Inventors
- 👤 John J Rendos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:33
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; C; C01; C01B; C01B23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE METHOD OF PURIFYING A STREAM OF MONATOMIC INERT GAS CONTAINING ATMOSPHERIC CONTAMINANTS AND AT LEAST ONE OF THE OXIDIZABLE IMPURITIES CARBON MONOXIDE, HYDROGEN AND HYDROCARBONS, WHICH COMPRISES CATALYTICALLY OXIDIZING SAID OXIDIZABLE IMPURITIES IN A STREAM OF SAID INERT GAS AND CONTACTING THE RESULTING GAS STREAM, INCLUDING THE PRODUCTS OF SAID OXIDATION WITH TITANIUM AT AN ELEVATED TEMPERATURE EFFECTIVE FOR THE REMOVAL OF THE RESIDUAL ATMOSPHERIC COMTAMINANTS AND SAID OXIDATION
Claim 2
Independent Claim
70 words
THE METHOD OF PURIFYING A STREAM OF MONATOMIC INERT GAS CONTAINING ATMOSPHERIC CONTAMINANTS AND AT LEAST ONE OF THE OXIDIZABLE IMPURITIES CARBON MONOXIDE, HYDROGEN AND HYDROCARBONS, WHICH COMPRISES CATALYTICALLY OXIDIZING SAID OXIDIZABLE IMPURITIES IN A STREAM OF SAID INERT GAS AND CONTACTING THE RESULTING GAS STREAM, INCLUDING THE PRODUCTS OF SAID OXIDATION WITH TITANIUM AT AN ELEVATED TEMPERATURE EFFECTIVE FOR THE REMOVAL OF THE RESIDUAL ATMOSPHERIC COMTAMINANTS AND SAID OXIDATION
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) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |