Patent US2946665A successfully refreshed from Google Patents.
US2946665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for the determination of carbon dioxide in biological fluids
Assignee: Bayer Corp
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Filing: 1956-09-26
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Granted: 1960-07-26
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Expires: 1976-09-26
Abstract
No abstract record available.
Inventors
- 👤 Leonard T Skeggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:09
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/14; G01N33/00; G01N33/48; G01N33/483; G01N33/487; G01N33/49; G01N33/4925; Y; Y10; Y10T; Y10T436/00; Y10T436/11; Y10T436/117497; Y10T436/118339
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
APPARATUS FOR ANALYZING A LIQUID FOR DETERMINING THE PRESENCE THEREIN OF A SUBSTANCE WHICH IS CAPABLE OF BEING LIBERATED IN GASEOUS FORM BY THE ADDITION OF A REAGENT TO SAID LIQUID, COMPRISING A CONDUIT, PUMP MEANS FOR EFFECTING A FLOW OF THE LIQUID AND THE REAGENT IN PREDETERMINED PROPORTIONS TO A JUNCTION POINT AT WHICH REACTION OF SAID REAGENT WITH SAID SUBSTANCE OCCURS AND WHICH IS IN FLUID-FLOW COMMUNICATION WITH SAID CONDUIT AND A FLOW OF THE RESULTING FLUID THROUGH SAID CONDUIT OCCURS, PUMP MEANS CONNECTED TO SAID CONDUIT AT SAID REACTION POINT FOR PROVIDING SUB-ATMOSPHERIC PRESSURE AT SAID REACTION POINT, SAID CONDUIT HAVING AN ENLARGED PART THROUGH WHICH THE FLUIDS ARE TRANSMITTED BY SAID FIRST AND LAST MENTIONED PUMP MEANS, AND PRESSURE RESPONSIVE MEANS CONNECTED TO SAID ENLARGED PART OF SAID CONDUIT FOR INDICATING PRESSURE CHANGES THEREIN DURING THE FLOW OF SAID FLUID THROUGH SAID CONDUIT AND THEREBY INDICATING THE QUANTITY OF THE LIBERATED GASESOUS SUBSTANCE.
Claim 2
Dependent Claim
157 words
APPARATUS FOR ANALYZING A LIQUID FOR DETERMINING THE PRESENCE THEREIN OF A SUBSTANCE WHICH IS CAPABLE OF BEING LIBERATED IN GASEOUS FORM BY THE ADDITION OF A REAGENT TO SAID LIQUID, COMPRISING A CONDUIT, PUMP MEANS FOR EFFECTING A FLOW OF THE LIQUID AND THE REAGENT IN PREDETERMINED PROPORTIONS TO A JUNCTION POINT AT WHICH REACTION OF SAID REAGENT WITH SAID SUBSTANCE OCCURS AND WHICH IS IN FLUID-FLOW COMMUNICATION WITH SAID CONDUIT AND A FLOW OF THE RESULTING FLUID THROUGH SAID CONDUIT OCCURS, PUMP MEANS CONNECTED TO SAID CONDUIT AT SAID REACTION POINT FOR PROVIDING SUB-ATMOSPHERIC PRESSURE AT SAID REACTION POINT, SAID CONDUIT HAVING AN ENLARGED PART THROUGH WHICH THE FLUIDS ARE TRANSMITTED BY SAID FIRST AND LAST MENTIONED PUMP MEANS, AND PRESSURE RESPONSIVE MEANS CONNECTED TO SAID ENLARGED PART OF SAID CONDUIT FOR INDICATING PRESSURE CHANGES THEREIN DURING THE FLOW OF SAID FLUID THROUGH SAID CONDUIT AND THEREBY INDICATING THE QUANTITY OF THE LIBERATED GASESOUS SUBSTANCE.
Claim 3
Independent Claim
81 words
A METHOD OF QUANTITATIVELY ANALYZING A LIQUID FOR THE PRESENCE THEREIN OF SUBSTANCE CAPABLE OF BEING LIBERATED THEREFORM IN GASEOUS FORM, COMPRISING FORMING STREAM OF SAID LIQUID IN A CONDUIT, ADDING A REAGENT THERETO IN A PART OF SAID CONDUIT AND PROVIDING SUB-ATMOSPHERIC PRESSURE IN SAID PART OF THE CONDUIT FOR CAUSING SAID SUBSTANCE TO BE EVOLVED FROM THE LIQUID IN GASEOUS FORM, AND MEASURING THE FLUID PRESSURE IN SAID PART OF THE CONDUIT DURING THE FLOW OF SAID FLUID THEREIN.
Claim 4
Independent Claim
81 words
A METHOD OF QUANTITATIVELY ANALYZING A LIQUID FOR THE PRESENCE THEREIN OF SUBSTANCE CAPABLE OF BEING LIBERATED THEREFORM IN GASEOUS FORM, COMPRISING FORMING STREAM OF SAID LIQUID IN A CONDUIT, ADDING A REAGENT THERETO IN A PART OF SAID CONDUIT AND PROVIDING SUB-ATMOSPHERIC PRESSURE IN SAID PART OF THE CONDUIT FOR CAUSING SAID SUBSTANCE TO BE EVOLVED FROM THE LIQUID IN GASEOUS FORM, AND MEASURING THE FLUID PRESSURE IN SAID PART OF THE CONDUIT DURING THE FLOW OF SAID FLUID THEREIN.
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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) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |