Patent US3206390A successfully refreshed from Google Patents.
US3206390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluids handling
Assignee: Phillips Petroleum Co
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Filing: 1961-06-06
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Granted: 1965-09-14
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Expires: 1981-06-06
Abstract
No abstract record available.
Inventors
- 👤 Joe Van Pool
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:01
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; Y; Y10; Y10S; Y10S208/00; Y10S208/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN AN HF-ALKYLATION OPERATION WHEREIN THERE ARE OBTAINED IN A STREAM VAPOROUS LIGHT HYDROCARBONS AND HFACID THOSE STEPS IN COMBINATION WHICH CONSIST ESSENTIALLY OF FEEDING ONLY SAID VAPOROUS STREAM TO A LIQUID KNOCKOUT ZONE, IN SAID ZONE REMOVING LIQUID FROM SAID STREAM, PASSING THE REMAINDER OF SAID STREAM CONTAIING HYDROCARBONS TO A NEUTRALIZING ZONE, SAID KNOCKOUT AND SAID NEUTRALIZING ZONES BEING MAINTAINED CONTINUOUSLY IN OPEN VAPOR COMMUNICATION WITH EACH OTHER, THEREIN TREATING SAID STREAM WITH AN AQUEOUS NEUTRALIZING SOLUTION, AND ALSO FEEDING INTO SAID LIQUID KNOCKOUT ZONE A DRY FUEL GAS IN A QUANTITY SUFFICIENT TO MAINTAIN BETWEEN SAID ZONES A PREDETERMINED DESIRED FLOW OF VAPOROUS HYDROCARBONS WHEREBY TO PREVENT BACKFLOW OF WATER VAPOR BY WAY OF SAID CONTINUOUSLY OPEN VAPOR COMMUNICATION FROM THE NEUTRALIZING ZONE INTO THE LIQUID KNOCKOUT ZONE.
Claim 2
Dependent Claim
131 words
IN AN HF-ALKYLATION OPERATION WHEREIN THERE ARE OBTAINED IN A STREAM VAPOROUS LIGHT HYDROCARBONS AND HFACID THOSE STEPS IN COMBINATION WHICH CONSIST ESSENTIALLY OF FEEDING ONLY SAID VAPOROUS STREAM TO A LIQUID KNOCKOUT ZONE, IN SAID ZONE REMOVING LIQUID FROM SAID STREAM, PASSING THE REMAINDER OF SAID STREAM CONTAIING HYDROCARBONS TO A NEUTRALIZING ZONE, SAID KNOCKOUT AND SAID NEUTRALIZING ZONES BEING MAINTAINED CONTINUOUSLY IN OPEN VAPOR COMMUNICATION WITH EACH OTHER, THEREIN TREATING SAID STREAM WITH AN AQUEOUS NEUTRALIZING SOLUTION, AND ALSO FEEDING INTO SAID LIQUID KNOCKOUT ZONE A DRY FUEL GAS IN A QUANTITY SUFFICIENT TO MAINTAIN BETWEEN SAID ZONES A PREDETERMINED DESIRED FLOW OF VAPOROUS HYDROCARBONS WHEREBY TO PREVENT BACKFLOW OF WATER VAPOR BY WAY OF SAID CONTINUOUSLY OPEN VAPOR COMMUNICATION FROM THE NEUTRALIZING ZONE INTO THE LIQUID KNOCKOUT ZONE.
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |