Patent US2851428A successfully refreshed from Google Patents.
US2851428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for revivifying carbonaceous adsorbents
Assignee: Individual
•
Filing: 1956-03-08
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Granted: 1958-09-09
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Expires: 1976-03-08
Abstract
No abstract record available.
Inventors
- 👤 Truman B Wayne
- 👤 Jack H Mclellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:05
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/30; C01B32/39; C01B32/354; C01B32/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN THE ART OF TREATING AQUEOUS SOLUTIONS OF THE CHARACTER PRODUCED IN THE MAKING OF SUGAR FROM CANE, BEET AND CORN AND CONTAINING COLORING MATTER, SALTS AND OTHER IMPURITIES IN ASSOCIATION WITH SUCROSE, DEXTROSE, LEVULOSE, MALTOSE, DEXTRINS AND OTHER SOLUBLE MATTER, BY PERCOLATING THE AQUEOUS SOLUTION THROUGH A BED OF A COARSE GRANULAR ADSORBENT OF A TYPE CONTAINING PERMANENT SURFACE-ACTIVE CARBONS AND OF A MESH TO EFFECT SUCH PERCOLATION, A PROCESS FOR REVIVIFYING SUCH COARSE GRANULAR SPENT ADSORBENT CONTAINING AN ADSORBED DEPOSIT OF SUCH IMPURITIES, COMPRISING, PASSING HEATED OXIDIZING GASES THROUGH A LOOSE BED OF SUCH COARSE GRANULAR SPENT AD-
Claim 2
Dependent Claim
100 words
IN THE ART OF TREATING AQUEOUS SOLUTIONS OF THE CHARACTER PRODUCED IN THE MAKING OF SUGAR FROM CANE, BEET AND CORN AND CONTAINING COLORING MATTER, SALTS AND OTHER IMPURITIES IN ASSOCIATION WITH SUCROSE, DEXTROSE, LEVULOSE, MALTOSE, DEXTRINS AND OTHER SOLUBLE MATTER, BY PERCOLATING THE AQUEOUS SOLUTION THROUGH A BED OF A COARSE GRANULAR ADSORBENT OF A TYPE CONTAINING PERMANENT SURFACE-ACTIVE CARBONS AND OF A MESH TO EFFECT SUCH PERCOLATION, A PROCESS FOR REVIVIFYING SUCH COARSE GRANULAR SPENT ADSORBENT CONTAINING AN ADSORBED DEPOSIT OF SUCH IMPURITIES, COMPRISING, PASSING HEATED OXIDIZING GASES THROUGH A LOOSE BED OF SUCH COARSE GRANULAR SPENT AD-
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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |