US2740894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid gas analyser
Assignee: Research Corp
•
Filing: 1952-10-21
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Granted: 1956-04-03
•
Expires: 1972-10-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul F Deisler
- 👤 Richard H Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:38
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/62; G01N27/64; G01N27/66
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
THE METHOD OF DETERMINING THE REALTIVE PERCENTAGE OF EACH GAS IN A GAS MIXTURE WHICH COMPRISES IRRADIATING A SAMPLE OF THE MIXTURE WITH ALPHA PARTICLES FROM A SOURCE OF SUBSTANTIALLY CONSTANT INTENSITY, AND DETERMINING THE VALUE OF A FUNCTION OF THE RELATIVE SPECIFIC IONIZATION OF THE COMPONENTS OF THE MIXTURE AT A DEFINITE DISTANCE FROM SAID SOURCE WITHIN THE MINIMUM RANGE OF THE ALPHA PARTICLES FOR ANY COMPONENT OF THE GAS MIXTURE AS A INDICATION OF THE PERCENTAGE OF EACH COMPONENT.
References Cited (Backward Citations)
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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) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |