Patent US2628933A successfully refreshed from Google Patents.
US2628933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of solid adsorbents
Assignee: California Research LLC
•
Filing: 1949-03-21
•
Granted: 1953-02-17
•
Expires: 1969-03-21
Abstract
No abstract record available.
Inventors
- 👤 Eagle Sam
- 👤 Jr John W Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:58
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/12; B; B01; B01J; B01J20/00; B01J20/02; B01J20/06; B01J20/08; B01J20/10; B01J20/103; B01J20/30; B01J20/34; B01J20/3433; B01J20/345; B01J20/3475; B01J20/3483
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN AN ADSORPTION SEPARATION PROCESS WHEREIN A MIXTURE OF LIQUID ORGANIC COMPOUNDS CONTAINING A MINOR PROPORTION OF VERY STRONGLY ADSORBED NON-AROMATIC POLAR COMPOUNDS IS CONTACTED WITH A SOLID ADSORBENT IN A GUARD ZONE IS TO REMOVE SAID STRONGLY ADSORBED COMPOUNDS AND WHEREIN THE EFFLUENT FROM THE GUARD ZONE IS THEREAFTER SEPARATED INTO AT LEAST TWO FRACTIONS BY CONTACT WITH A SOLID ADSORBENT IN AN ADSORPTION ZONE, THE IMPROVED METHOD OF REGENERATING THE ADSORBENT IN THE GUARD ZONE WHICH COMPRISES CONTACTING SAID ADSORBENT WITH A LIQUID
Claim 2
Dependent Claim
85 words
IN AN ADSORPTION SEPARATION PROCESS WHEREIN A MIXTURE OF LIQUID ORGANIC COMPOUNDS CONTAINING A MINOR PROPORTION OF VERY STRONGLY ADSORBED NON-AROMATIC POLAR COMPOUNDS IS CONTACTED WITH A SOLID ADSORBENT IN A GUARD ZONE IS TO REMOVE SAID STRONGLY ADSORBED COMPOUNDS AND WHEREIN THE EFFLUENT FROM THE GUARD ZONE IS THEREAFTER SEPARATED INTO AT LEAST TWO FRACTIONS BY CONTACT WITH A SOLID ADSORBENT IN AN ADSORPTION ZONE, THE IMPROVED METHOD OF REGENERATING THE ADSORBENT IN THE GUARD ZONE WHICH COMPRISES CONTACTING SAID ADSORBENT WITH A LIQUID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |