Patent US3077104A successfully refreshed from Google Patents.
US3077104A
Expired / Lapsed
US
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Process for detecting the interface between two adjacent fluids
Assignee: Individual
•
Filing: 1959-05-27
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Granted: 1963-02-12
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Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Frank C Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:59
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2835
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A METHOD FOR DETECTING THE INTERFACE BETWEEN TWO ADJACENT BATCHES OF GASOLINE SUCCESSIVELY FLOWING THROUGH A CONDUIT WHICH COMPRISES INJECTING A MISCIBLE FLUORINATED HYDROCARBON ADJACENT TO SAID INTERFACE IN AN AMOUNT BETWEEN ABOUT 0.1 AND ABOUT 500 P.P.M. OF THE GASOLINE AND SUBSEQUENTLY DOWNSTREAM FROM THE POINT OF INJECTION REMOVING A PORTION OF THE GASOLINE CONTAINING SAID FLUORINATED HYDROCARBON, VAPORIZING SAID PORTION OF THE GASOLINE THUS REMOVED AND DETERMINED THE PRESENCE OF FLUORINATED HYDROCARBON IN SAID GASOLINE.
Claim 2
Independent Claim
77 words
A METHOD FOR DETECTING THE INTERFACE BETWEEN TWO ADJACENT BATCHES OF GASOLINE SUCCESSIVELY FLOWING THROUGH A CONDUIT WHICH COMPRISES INJECTING A MISCIBLE FLUORINATED HYDROCARBON ADJACENT TO SAID INTERFACE IN AN AMOUNT BETWEEN ABOUT 0.1 AND ABOUT 500 P.P.M. OF THE GASOLINE AND SUBSEQUENTLY DOWNSTREAM FROM THE POINT OF INJECTION REMOVING A PORTION OF THE GASOLINE CONTAINING SAID FLUORINATED HYDROCARBON, VAPORIZING SAID PORTION OF THE GASOLINE THUS REMOVED AND DETERMINED THE PRESENCE OF FLUORINATED HYDROCARBON IN SAID GASOLINE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |