US3625655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid analyzer
Assignee: Texaco Inc
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Filing: 1969-12-02
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Granted: 1971-12-07
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Expires: 1989-12-02
Abstract
Abstract A SYSTEM THAT AUTOMATICALLY ANALYZES ACIDITY OR BASICITY OF A CHEMICAL PROCESS STREAM PERIODICALLY. THE SYSTEM CAN HANDLE A PETROLEUM PROCESS STEAM THAT CONTAINS AN ACID-HYDROCARBON OR BASE-HYDROCARBON EMULSION. AT LEAST SOME OF THE HYDROCARBONS ARE GASEOUS UNDER NORMAL AMBIENT CONDITIONS. THE ACID, UNDER SYSTEM PRESSURE, IS SETTLED IN A VERTICAL COLUMN AND SUBSEQUENTLY SAMPLED. THE ACID OR BASIC CONTENT OF THE SAMPLE IS DETERMINED BY A POTENTIOMETRIC TITRATION.
Inventors
- 👤 Robert A Culp Jr
- 👤 Robert E Franke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:08
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2835; G01N33/2876; G01N1/00; G01N1/02; G01N1/10; G01N1/20; G01N1/2035; G01N31/00; G01N31/16; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/91; Y10S585/929; Y10S585/943; Y10T; Y10T436/00; Y10T436/11; Y10T436/115831; Y10T436/116664
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |