US3141323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the separation and storage of fluids by chromatography
Assignee: Fisher Scientific Co LLC
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Filing: 1959-01-05
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Granted: 1964-07-21
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Expires: 1979-01-05
Abstract
No abstract record available.
Inventors
- 👤 Billy W Taylor
- 👤 Jr Albert Anthony Poli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:22
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/26; G01N30/38; G01N30/46; G01N30/468; G01N30/461
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
A METHOD FOR SEPARATING AND STORING A FLUID WHICH COMPRISES FLOWING AN INERT CARRIER GAS THROUGH A CHROMATOGRAPHIC COLUMN, INJECTING A FLUID MIXTURE CONTAINING THE FLUID TO BE STORED INTO SAID CARRIER GAS IN ADVANCE OF SAID COLUMN, SEPARATING THE FLUID TO BE STORED FROM THE BALANCE OF THE FLUID MIXTURE, FLOWING THE CARRIER GAS AND SAID FLUID TO BE STORED INTO A SECOND CHROMATOGRAPHIC COLUMN, AND CLOSING THE ENDS OF SAID SECOND COLUMN AFTER THE FLUID TO BE STORED HAS ENTERED SAID SECOND COLUMN.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |