US2855437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutralization process
Assignee: Phillips Petroleum Co
•
Filing: 1955-06-06
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Granted: 1958-10-07
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Expires: 1975-06-06
Abstract
No abstract record available.
Inventors
- 👤 Harold D Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:28
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0086; C; C07; C07C; C07C51/00; C07C51/41; C07C51/412
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN NEUTRALIZING AN ACID CONTAINING ORGANIC LIQUID WHEREIN SAID LIQUID IS CONTACTED WITH A SOLID NEUTRALIZING AGENT INSOLUBLE IN WATER AND WHICH REACTS WITH SAID ACID TO FORM SALTS WHICH TEND TO COAT THE SURFACE OF SAID AGENT AND THEREBY REDUCE ITS NEUTRALIZING ACTIVITY, THE METHOD WHICH COMPRISES FLOWING A STREAM OF WATER AS A CONTINUOUS PHASE THROUGH A FIXED BED OF SAID NEUTRALIZING AGENT AND SIMULTANEOUSLY FLOWING SAID ORGANIC LIQUID THROUGH SAID BED AS A DISPERSED PHASE COUNTERCURRENT TO SAID STREAM OF WATER.
Claim 2
Dependent Claim
84 words
IN NEUTRALIZING AN ACID CONTAINING ORGANIC LIQUID WHEREIN SAID LIQUID IS CONTACTED WITH A SOLID NEUTRALIZING AGENT INSOLUBLE IN WATER AND WHICH REACTS WITH SAID ACID TO FORM SALTS WHICH TEND TO COAT THE SURFACE OF SAID AGENT AND THEREBY REDUCE ITS NEUTRALIZING ACTIVITY, THE METHOD WHICH COMPRISES FLOWING A STREAM OF WATER AS A CONTINUOUS PHASE THROUGH A FIXED BED OF SAID NEUTRALIZING AGENT AND SIMULTANEOUSLY FLOWING SAID ORGANIC LIQUID THROUGH SAID BED AS A DISPERSED PHASE COUNTERCURRENT TO SAID STREAM OF WATER.
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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) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |