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US2569895A
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Detection of carbon monoxide by palladous sulfite and/or palladosulfites
Assignee: Individual
•
Filing: 1945-03-08
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Granted: 1951-10-02
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Expires: 1965-03-08
Abstract
No abstract record available.
Inventors
- 👤 Main-Smith John David
- 👤 Earwicker George Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:06
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/24; G01N31/00; G01N31/22; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/204998; Y10T436/205831
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A MATERIAL FOR THE DETECTION OF CARBON MONOXIDE IN ADMIXTURE WITH OTHER GASES CONSISTING OF A RELATIVELY INERT, ABSORBENT CARRIER SUBSTANCE IMPREGNATED WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PALLADIUM SULPHITE PDSO3 AND THE PALLADOSULPHITES OF THE FORMULA
Claim 2
Dependent Claim
40 words
A MATERIAL FOR THE DETECTION OF CARBON MONOXIDE IN ADMIXTURE WITH OTHER GASES CONSISTING OF A RELATIVELY INERT, ABSORBENT CARRIER SUBSTANCE IMPREGNATED WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PALLADIUM SULPHITE PDSO3 AND THE PALLADOSULPHITES OF THE FORMULA
References Cited (Backward Citations)
US1321062A
Cited
US1971668A
Cited
US2111301A
Cited
US2174349A
Cited
US2176462A
Cited
US2375786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |