US3397965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas analysis unit
Assignee: ROBERT R BERUEFFY
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Filing: 1965-06-17
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Granted: 1968-08-20
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Expires: 1985-06-17
Abstract
No abstract record available.
Inventors
- 👤 Robert R Berueffy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:34
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/14; Y; Y10; Y10T; Y10T436/00; Y10T436/17; Y10T436/173845; Y10T436/175383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A METHOD OF MAKING A QUNTITIATIVE DETERMINATION OF A COMPONENT IN A CHEMICAL SPECIMEN OF GENERALLY KNOWN CHARACTERISTICS, COMPRISING SEPARATING THE COMPONENT FROM THE SPECIMEN BY CONVERTING IT INTO INDPENDENT VOLATILIZED FORM, INDUCING THE THUS VOLATILIZED COMPONENT TO FLOW INTO ONE END OF AN OPEN-ENDED TUBE HAVING A LIQUID REAGENT THEREIN THAT IS SUSPENDED IN A FREE PHYSICAL STATE ACROSS THE BORE OF THE TUBE, SAID REAGENT CONTAINING A SUBSTANCE WHICH IS REACTIVE QUANTITATIVELY WITH THE THUS VOLATILIZED COMPONENT, AND WHICH IS PRESENT IN AN AMOUNT IN EXCESS OF THE MAXIMUM STOICHIOMETRIC AMOUNT EXPECTED FOR THE SPECIMEN, CENTRIFUGING THE TUBE TO DISPLACE THE LIQUID PORTION OF THE REACTED REAGENT INTO A RECIPTACLE, AND COMPARING THE DISPLACED LIQUID PORTION WITH A STANDARD DERIVED BY PASSING A KNOWN QUANTITY OF THE COMPONENT THROUGH THE SAME STEPS.
Claim 2
Independent Claim
134 words
A METHOD OF MAKING A QUNTITIATIVE DETERMINATION OF A COMPONENT IN A CHEMICAL SPECIMEN OF GENERALLY KNOWN CHARACTERISTICS, COMPRISING SEPARATING THE COMPONENT FROM THE SPECIMEN BY CONVERTING IT INTO INDPENDENT VOLATILIZED FORM, INDUCING THE THUS VOLATILIZED COMPONENT TO FLOW INTO ONE END OF AN OPEN-ENDED TUBE HAVING A LIQUID REAGENT THEREIN THAT IS SUSPENDED IN A FREE PHYSICAL STATE ACROSS THE BORE OF THE TUBE, SAID REAGENT CONTAINING A SUBSTANCE WHICH IS REACTIVE QUANTITATIVELY WITH THE THUS VOLATILIZED COMPONENT, AND WHICH IS PRESENT IN AN AMOUNT IN EXCESS OF THE MAXIMUM STOICHIOMETRIC AMOUNT EXPECTED FOR THE SPECIMEN, CENTRIFUGING THE TUBE TO DISPLACE THE LIQUID PORTION OF THE REACTED REAGENT INTO A RECIPTACLE, AND COMPARING THE DISPLACED LIQUID PORTION WITH A STANDARD DERIVED BY PASSING A KNOWN QUANTITY OF THE COMPONENT THROUGH THE SAME STEPS.
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) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |