Patent US3208526A successfully refreshed from Google Patents.
US3208526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of suspended solids from aqueous solutions containing heteropoly-saccharides produced by bacteria of the genus xanthomonas
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1963-04-11
•
Granted: 1965-09-28
•
Expires: 1983-04-11
Abstract
No abstract record available.
Inventors
- 👤 John T Patton
- 👤 Willis E Holman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:28
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/04; C12P19/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR THE REMOVAL OF SUSPENDED SOLIDS FROM AN AQUEOUS SOLUTION OF A HETEROPOLYSACCHARIDE DERIVED FROM A CARBOHYDRATE BY BACTERIA OF THE GENUS XANTHOMONAS WHICH COMPRISES ADDING A WATER-SOLUBLE COMPOUND YIELDING DIVALENT CATIONS TO SAID SOLUTION IN A CONCENTRATION SUFFICIENT TO ACCELERATE THE MECHANICAL SEPARATION OF SUSPENDED SOLIDS FROM THE SOLUTION WITHOUT PRECIPITATING SAID HETEROPOLYSACCHARIDE AND THEREAFTER MECHANICALLY SEPARATING SAID SOLIDS FROM SAID SOLUTION.
Claim 2
Dependent Claim
65 words
A PROCESS FOR THE REMOVAL OF SUSPENDED SOLIDS FROM AN AQUEOUS SOLUTION OF A HETEROPOLYSACCHARIDE DERIVED FROM A CARBOHYDRATE BY BACTERIA OF THE GENUS XANTHOMONAS WHICH COMPRISES ADDING A WATER-SOLUBLE COMPOUND YIELDING DIVALENT CATIONS TO SAID SOLUTION IN A CONCENTRATION SUFFICIENT TO ACCELERATE THE MECHANICAL SEPARATION OF SUSPENDED SOLIDS FROM THE SOLUTION WITHOUT PRECIPITATING SAID HETEROPOLYSACCHARIDE AND THEREAFTER MECHANICALLY SEPARATING SAID SOLIDS FROM SAID SOLUTION.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |