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US2521041A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for quantitative analysis of gases

Assignee: CARNEGIC ILLINOIS STEEL CORP
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Filing: 1944-06-27
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Granted: 1950-09-05
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Expires: 1964-06-27
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Abstract

No abstract record available.

Inventors

  • 👤 Chase Sherman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 04:51
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/02; G01N7/08

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 182 words
APPARATUS FOR QUANTITATIVELY ANALYZING GAS FOR CARBON DIOXIDE, HYDROGEN AND CARBON MONOXIDE COMPRISING A PAIR OF PUMPS, A FIRST CARBON DIOXIDE ABSORPTION MEANS, CONDUITS CONNECTING THE DISCHARGES OF SAID PUMPS WITH THE INLET OF SAID ABSORPTION MEANS, A FIRST ROTARY FLOW METER, A CONDUIT CONNECTING THE DISCHARGE OF SAID ABSORPTION MEANS WITH THE INLET OF SAID METER, A DIFFERENTIAL GEARING CONNECTING SAID PUMPS AND SAID METER, A COMBUSTION CHAMBER, A CONDUIT CONNECTING THE DISCHARGE OF SAID METER WITH THE INLET OF SAID COMBUSTION CHAMBER, A SECOND ROTARY FLOW METER, A CONDUIT CONNECTING THE DISCHARGE OF SAID COMBUSTION CHAMBER WITH THE INLET OF SAID SECOND METER, A SECOND DIFFERENTIAL GEARING CONNECTING SAID FIRST AND SECOND METERS, A SECOND CARBON DIOXIDE ABSORPTION MEANS, A CONDUIT CONNECTING THE DISCHARGE OF SAID SECOND METER WITH THE INLET OF SAID SECOND ABSORPTION MEANS, A THIRD ROTARY FLOW METER, A CONDUIT CONNECTING THE DISCHARGE OF SAID SECOND ABSORPTION MEANS WITH THE INLET OF SAID THIRD METER, A THIRD DIFFERENTIAL GEARING CONNECTING SAID SECOND AND THIRD METERS, AND A FOURTH DIFFERENTIAL GEARING CONNECTING SAID SECOND AND THIRJD DIFFERENTIAL GEARINGS.

References Cited (Backward Citations)

US578003A Cited
US1700852A Cited
US1961350A Cited
US2001114A Cited
US2320310A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1953-09-04 1954-03-06 1954-09-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1957-09-04 1958-03-06 1958-09-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1961-09-04 1962-03-06 1962-09-05 $7700.00 Window Closed / Lapsed

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