US3248929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operating method for vapor fraction analyzers
Assignee: Union Carbide Corp
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Filing: 1962-08-27
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Granted: 1966-05-03
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Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:49
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/24; G01N30/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD OF CHROMATOGRAPHIC ANALYSIS COMPRISING THE STEPS OF INJECTING A FIRST MULTICOMPONENT FLUID SAMPLE VOLUME INTO A RESOLVING COLUMN OF A CHROMATOGRAPHIC ANALYZER, RESOLVING SAID FIRST MULTICOMPONENT FLUID SAMPLE VOLUME INTO DISCERNABLE COMPONENTS OF INTEREST WHILE MAINTAINING A CONTINUOUS FLOW OF A CARRIER GAS THROUGH SAID COLUMN, INJECTING A SECOND MULTICOMPONENT FLUID SAMPLE VOLUME INTO SAID RESOLVING COLUM AT A TIME BEFORE ALL OF THE DISCERNABLE COMPONENTS OF INTEREST OF THE FIRST SAMPLE VOLUME ARE ELUTED FROM THE COLUMN, AND ELUTING THE DISCERNABLE COMPONENTS OF INTEREST OF THE FIRST SAMPLE VOLUME EACH IN BINARY MIXTURE WITH SAID CARRIER GAS WHILE CONCURRENTLY RESOLVING SAID SECOND SAMPLE VOLUME INTO DISCERNABLE COMPONENTS OF INTEREST.
Claim 2
Independent Claim
112 words
A METHOD OF CHROMATOGRAPHIC ANALYSIS COMPRISING THE STEPS OF INJECTING A FIRST MULTICOMPONENT FLUID SAMPLE VOLUME INTO A RESOLVING COLUMN OF A CHROMATOGRAPHIC ANALYZER, RESOLVING SAID FIRST MULTICOMPONENT FLUID SAMPLE VOLUME INTO DISCERNABLE COMPONENTS OF INTEREST WHILE MAINTAINING A CONTINUOUS FLOW OF A CARRIER GAS THROUGH SAID COLUMN, INJECTING A SECOND MULTICOMPONENT FLUID SAMPLE VOLUME INTO SAID RESOLVING COLUM AT A TIME BEFORE ALL OF THE DISCERNABLE COMPONENTS OF INTEREST OF THE FIRST SAMPLE VOLUME ARE ELUTED FROM THE COLUMN, AND ELUTING THE DISCERNABLE COMPONENTS OF INTEREST OF THE FIRST SAMPLE VOLUME EACH IN BINARY MIXTURE WITH SAID CARRIER GAS WHILE CONCURRENTLY RESOLVING SAID SECOND SAMPLE VOLUME INTO DISCERNABLE COMPONENTS OF INTEREST.
References Cited (Backward Citations)
DE1121591B
Cited
US3068685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |