Patent US3304159A successfully refreshed from Google Patents.
US3304159A
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Gas chromatographic analysis method for c, h, and n content in solid organic compounds
Assignee: HP Inc
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Filing: 1963-01-28
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Granted: 1967-02-14
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Orville N Hinsvark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:42
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/12; G01N30/00; G01N30/02; G01N30/04; G01N30/06; G01N30/12; G01N2030/125; G01N2030/126; G01N30/26; G01N30/38; G01N30/46; G01N30/461; Y; Y10; Y10T; Y10T436/00; Y10T436/17; Y10T436/176152; Y10T436/176921; Y10T436/22; Y10T436/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A METHOD FOR DETERMINING AT LEAST THE ELEMENTAL CARBON, HYDROGEN, AND NITROGEN CONTENT OF AN ORGANIC COMPOUND BY COMBUSTION, COMPRISING: MIXING A SOLID SAMPLE OF KNOWN MASS OF SAID COMPOUND WITH A SOLID METAL OXIDE, AS AN OXIDIZING AGENT, TO FORM A COMBUSTION MIXTURE, INTRODUCING SAID COMBUSTION MIXTURE INTO A CLOSED, HEATED COMBUSTION CHAMBER,
Claim 2
Independent Claim
54 words
A METHOD FOR DETERMINING AT LEAST THE ELEMENTAL CARBON, HYDROGEN, AND NITROGEN CONTENT OF AN ORGANIC COMPOUND BY COMBUSTION, COMPRISING: MIXING A SOLID SAMPLE OF KNOWN MASS OF SAID COMPOUND WITH A SOLID METAL OXIDE, AS AN OXIDIZING AGENT, TO FORM A COMBUSTION MIXTURE, INTRODUCING SAID COMBUSTION MIXTURE INTO A CLOSED, HEATED COMBUSTION CHAMBER,
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |