US2847368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction of hydrocarbons from water
Assignee: California Research LLC
•
Filing: 1956-09-24
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Granted: 1958-08-12
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Expires: 1976-09-24
Abstract
No abstract record available.
Inventors
- 👤 Albert E Worthington
- 👤 Charles J Walters
- 👤 Keith E Chave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:51
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/14; Y; Y10; Y10S; Y10S159/00; Y10S159/29; Y10S159/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF EXTRACTING TRACE AMOUNTS OF HYDROCARBONS FROM WATER COMPRISING THE STEPS OF INTRODUCING SAID WATER INTO AN EXCHANGE COLUMN, INTRODUCING STEAM INTO SAID COLUMN TO PROVIDE A COUNTERCURRENT CONTACT BETWEEN SAID STEAM AND SAID WATER, THE CONTINUED CONTACT OF SAID STEAM WITH SAID WATER IN SAID COLUMN PRODUCING A NUMBER OF THEORETICAL EQUILIBRIUM STAGES BETWEEN SAID STEAM AND SAID WATER TO REMOVE SAID HYDROCARBONS FROM SAID WATER AND TO CAUSE SAID REMOVED HYDROCARBONS TO MOVE TO THE TOP OF SAID COLUMN, WITHDRAWING SAID REMOVED
Claim 2
Independent Claim
86 words
THE METHOD OF EXTRACTING TRACE AMOUNTS OF HYDROCARBONS FROM WATER COMPRISING THE STEPS OF INTRODUCING SAID WATER INTO AN EXCHANGE COLUMN, INTRODUCING STEAM INTO SAID COLUMN TO PROVIDE A COUNTERCURRENT CONTACT BETWEEN SAID STEAM AND SAID WATER, THE CONTINUED CONTACT OF SAID STEAM WITH SAID WATER IN SAID COLUMN PRODUCING A NUMBER OF THEORETICAL EQUILIBRIUM STAGES BETWEEN SAID STEAM AND SAID WATER TO REMOVE SAID HYDROCARBONS FROM SAID WATER AND TO CAUSE SAID REMOVED HYDROCARBONS TO MOVE TO THE TOP OF SAID COLUMN, WITHDRAWING SAID REMOVED
References Cited (Backward Citations)
US2556030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |