US3847551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Standardizing of alcohol-content measuring apparatus
Assignee: Cal Detect Inc
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Filing: 1972-05-18
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Granted: 1974-11-12
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Expires: 1992-05-18
Abstract
Abstract A composition for use in standardizing, calibrating or testing apparatus for determining quantitatively the alcohol content of gases consists essentially of dry argon and ethyl alcohol. A measured amount of the composition is introduced to the apparatus to be tested, calibrated or standardized.
Inventors
- 👤 D Hutson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:03
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/483; G01N33/497; G01N33/4972; G01N33/0004; G01N33/0006; Y; Y10; Y10T; Y10T436/00; Y10T436/10; Y10T436/100833; Y10T436/20; Y10T436/203332; Y10T436/204165
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
34 words
A COMPOSITION FOR USE IN STANDARDIZING, CALIBRATING, AND TESTING APPARATUS FOR DETERMINING QUANTITATIVELY THE CONTENT OF ALCOHOL IN GAS SAMPLES CONSISTING ESSENTIALLY OF ANHYDROUS ARGON AND 50 TO 5,000 PARTS PER MILLION ETHYL ALCOHOL.
Claim 2
Dependent Claim
34 words
A COMPOSITION FOR USE IN STANDARDIZING, CALIBRATING, AND TESTING APPARATUS FOR DETERMINING QUANTITATIVELY THE CONTENT OF ALCOHOL IN GAS SAMPLES CONSISTING ESSENTIALLY OF ANHYDROUS ARGON AND 50 TO 5,000 PARTS PER MILLION ETHYL ALCOHOL.
Claim 3
Dependent Claim
16 words
The composition of claim 1 at a pressure of between about 1, 000 and 2,000 p.s.i.g.
Claim 4
Dependent Claim
15 words
The composition of claim 1 at a pressure of between about 50 and 200 p.s.i.g.
Claim 5
Independent Claim
41 words
The method of standardizing apparatus for determining quantitatively the amount of ethyl alcohol in a gas, comprising introducing to said apparatus a known quantity of a gaseous composition consisting essentially of dry argon and an exactly known amount of ethyl alcohol.
Claim 6
Independent Claim
41 words
The method of standardizing apparatus for determining quantitatively the amount of ethyl alcohol in a gas, comprising introducing to said apparatus a known quantity of a gaseous composition consisting essentially of dry argon and an exactly known amount of ethyl alcohol.
Claim 7
Dependent Claim
20 words
The method of claim 4 wherein the gaseous ethyl alcohol constitutes 50 to 5,000 parts per million of the composition.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |