Patent US2403123A successfully refreshed from Google Patents.
Patent US3120749A successfully refreshed from Google Patents.
US3120749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas chromatography
Assignee: Standard Oil Co
•
Filing: 1959-09-30
•
Granted: 1964-02-11
•
Expires: 1979-09-30
Abstract
No abstract record available.
Inventors
- 👤 James P Paglis
- 👤 Bruce A Ritzenthaler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:49
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/26; G01N30/28; G01N30/32; G01N30/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
AN APPARATUS FOR THE CHROMATOGRAPHIC ANALYSIS OF GASEOUS AND VAPOROUS MIXTURES WHICH APPARATUS COMPRISES A SEPARATION MEANS HAVING AN INLET AND AN OUTLET, MEANS FOR CONDUCTING A STREAM OF CARRIER GAS INTO SAID INLET, MEANS FOR INTRODUCING A GAS SAMPLE INTO SAID CARRIER GAS STREAM ENTERING SID SEPARATION MEANS, MEANS FOR CONDUCTING AN EFFLUENT STREAM OF CARRIER GAS CONTAINING AN ELUTED COMPONENT FROM SAID OUTLET, FLOW CONTROLLER MEANS ADAPTED TO RECEIVE SAID EFFLUENT AND DISCHARGE SAID EFFLUENT AT A SUBSTANTIALLY CONSTANT FLOW RATE, SAID CON-
Claim 2
Independent Claim
85 words
AN APPARATUS FOR THE CHROMATOGRAPHIC ANALYSIS OF GASEOUS AND VAPOROUS MIXTURES WHICH APPARATUS COMPRISES A SEPARATION MEANS HAVING AN INLET AND AN OUTLET, MEANS FOR CONDUCTING A STREAM OF CARRIER GAS INTO SAID INLET, MEANS FOR INTRODUCING A GAS SAMPLE INTO SAID CARRIER GAS STREAM ENTERING SID SEPARATION MEANS, MEANS FOR CONDUCTING AN EFFLUENT STREAM OF CARRIER GAS CONTAINING AN ELUTED COMPONENT FROM SAID OUTLET, FLOW CONTROLLER MEANS ADAPTED TO RECEIVE SAID EFFLUENT AND DISCHARGE SAID EFFLUENT AT A SUBSTANTIALLY CONSTANT FLOW RATE, SAID CON-
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) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |