Patent US2714011A successfully refreshed from Google Patents.
US2867511A
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Apparatus for measuring alcohol content of gases
Assignee: Indiana University Foundation Inc
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Filing: 1955-07-29
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Granted: 1959-01-06
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Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 Rolla N Harger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:30
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/483; G01N33/497; G01N33/4972; G01N1/00; G01N1/02; G01N1/22; Y; Y10; Y10S; Y10S436/00; Y10S436/90; Y10T; Y10T436/00; Y10T436/20; Y10T436/203332; Y10T436/204165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
APPARATUS FOR MEASURING THE ALCOHOLIC CONTENT OF HUMAN BREATH, COMPRISING A COLLAPSIBLE NON-ELASTIC CONTAINER FOR HOLDING A SAMPLE OF BREATH UNDER ATMOSPHERIC PRESSURE, MEANS COUPLED TO SAID CONTAINER FOR REMOVING ANY ALCOHOL CONTAINED IN SAID BREATH AND COLOR CHANGEABLE TO A PREDETERMINED DEGREE IN RESPONSE TO A PREDETERMINED AMOUNT OF ALCOHOL, A METERING PUMP COUPLED TO SAID ALCOHOL-REMOVING MEANS FOR DRAWING BREATH FROM SAID CONTAINER THROUGH SAID MEANS, SAID PUMP HAVING A TRANSPARENT CYLINDER OF FIXED LENGTH AND NORMALLY DISPOSED VERTICALLY, A MEASURING SCALE ON THE OUTER SURFACE OF SAID CYLINDER, A GRAVITY MOVABLE PISTON THEREIN FOR DRAWING A FIXED QUANTITY OF BREATH THROUGH SAID MEANS DRAWING EACH DOWNWARD STROKE, MEANS FOR SUPPORTING SAID CYLINDER IN A VERTICAL PLANE FOR ROTATION ABOUT A HORIZONTAL AXIS WHEREBY SAID CYLINDER MAY BE ROTATED 180*
Claim 2
Dependent Claim
132 words
APPARATUS FOR MEASURING THE ALCOHOLIC CONTENT OF HUMAN BREATH, COMPRISING A COLLAPSIBLE NON-ELASTIC CONTAINER FOR HOLDING A SAMPLE OF BREATH UNDER ATMOSPHERIC PRESSURE, MEANS COUPLED TO SAID CONTAINER FOR REMOVING ANY ALCOHOL CONTAINED IN SAID BREATH AND COLOR CHANGEABLE TO A PREDETERMINED DEGREE IN RESPONSE TO A PREDETERMINED AMOUNT OF ALCOHOL, A METERING PUMP COUPLED TO SAID ALCOHOL-REMOVING MEANS FOR DRAWING BREATH FROM SAID CONTAINER THROUGH SAID MEANS, SAID PUMP HAVING A TRANSPARENT CYLINDER OF FIXED LENGTH AND NORMALLY DISPOSED VERTICALLY, A MEASURING SCALE ON THE OUTER SURFACE OF SAID CYLINDER, A GRAVITY MOVABLE PISTON THEREIN FOR DRAWING A FIXED QUANTITY OF BREATH THROUGH SAID MEANS DRAWING EACH DOWNWARD STROKE, MEANS FOR SUPPORTING SAID CYLINDER IN A VERTICAL PLANE FOR ROTATION ABOUT A HORIZONTAL AXIS WHEREBY SAID CYLINDER MAY BE ROTATED 180*
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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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |