US3078647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous gas chromatography
Assignee: Cities Service Research and Development Co
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Filing: 1960-05-12
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Granted: 1963-02-26
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Expires: 1980-05-12
Abstract
No abstract record available.
Inventors
- 👤 Loren C Mosier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:17
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/26; G01N30/38; G01N30/60; G01N30/6052; G01N30/90; G01N2030/381; G01N2030/386
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
CHROMATOGRAPHY APPARATUS COMPRISING AN ANNULAR MASS OF CHROMATOGRAPHIC PACKING MATERIAL THE INNER AND OUTER SURFACES OF WHICH ARE GENERALLY CYLINDRICAL, MEANS FOR INTRODUCING A FLUID SAMPLE MIXTURE RADIALLY INTO A CIRCUMFERENTIALLY RESTRICTED AREA OF THE INNER SURFACE OF SAID CHROMATOGRAPHIC PACKING MATERIAL, SAID CIRCUMFERENTIALLY RESTRICTED AREA EXTENDING LONGITUDINALLY ALONG SUCH INNER SURFACE, MEANS FOR SIMULTANEOUSLY INTRODUCING A CARRIER FLUID RADIALLY INTO SUBSTANTIALLY THE ENTIRE INNER SURFACE OF SAID CHROMATOGRAPHIC PACKING MATERIAL, MEANS FOR SEPARATELY COLLECTING FLUID FRACTIONS EMERGING TOGETHER WITH CARRIER FLUID FROM DIFFERENT AREAS OF THE OUTER SURFACE OF SAID CHROMATOGRAPHIC PACKING MATERIAL, AND MEANS FOR CAUSING CONTINUOUS CIRCUMFERENTIAL SHIFTING OF THE AREA OF INTRODUCTION OF THE SAMPLE MIXTURE WITH RESPECT TO THE INNER SURFACE OF THE ANNULAR MASS OF CHROMATOGRAPHIC PACKING MATERIAL.
Claim 2
Dependent Claim
124 words
CHROMATOGRAPHY APPARATUS COMPRISING AN ANNULAR MASS OF CHROMATOGRAPHIC PACKING MATERIAL THE INNER AND OUTER SURFACES OF WHICH ARE GENERALLY CYLINDRICAL, MEANS FOR INTRODUCING A FLUID SAMPLE MIXTURE RADIALLY INTO A CIRCUMFERENTIALLY RESTRICTED AREA OF THE INNER SURFACE OF SAID CHROMATOGRAPHIC PACKING MATERIAL, SAID CIRCUMFERENTIALLY RESTRICTED AREA EXTENDING LONGITUDINALLY ALONG SUCH INNER SURFACE, MEANS FOR SIMULTANEOUSLY INTRODUCING A CARRIER FLUID RADIALLY INTO SUBSTANTIALLY THE ENTIRE INNER SURFACE OF SAID CHROMATOGRAPHIC PACKING MATERIAL, MEANS FOR SEPARATELY COLLECTING FLUID FRACTIONS EMERGING TOGETHER WITH CARRIER FLUID FROM DIFFERENT AREAS OF THE OUTER SURFACE OF SAID CHROMATOGRAPHIC PACKING MATERIAL, AND MEANS FOR CAUSING CONTINUOUS CIRCUMFERENTIAL SHIFTING OF THE AREA OF INTRODUCTION OF THE SAMPLE MIXTURE WITH RESPECT TO THE INNER SURFACE OF THE ANNULAR MASS OF CHROMATOGRAPHIC PACKING MATERIAL.
References Cited (Backward Citations)
US2891630A
Cited
GB811627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |