US2855282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen peroxide decolorization
Assignee: Columbia Southern Chemical Corp
•
Filing: 1955-10-14
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Granted: 1958-10-07
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Expires: 1975-10-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Cox
- 👤 Korach Malcolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:35
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/01; C01B15/013; C01B15/022; C01B15/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF REMOVING COLOR FROM A SOLUTION OF HYDROGEN PEROXIDE PRODUCED BY OXIDATION OF AN ORGANIC COMPOUND, SAID COLOR HAVING BEEN PRODUCED IN THE COURSE OR PRODUCTION OF SAID HYDROGEN PEROXIDE, WHICH COMPRISES CONTACTING SAID SOLUTION WITH SOLID POLYETHYLENE CONTINUING THE CONTACT UNTIL A SUBSTANTIAL AMOUNT OF THE COLOR HAS BEEN REMOVED FROM THE SOLUTION, AND RECOVERING THE SOLUTION FROM THE POLYMER.
Claim 2
Independent Claim
63 words
A METHOD OF REMOVING COLOR FROM A SOLUTION OF HYDROGEN PEROXIDE PRODUCED BY OXIDATION OF AN ORGANIC COMPOUND, SAID COLOR HAVING BEEN PRODUCED IN THE COURSE OR PRODUCTION OF SAID HYDROGEN PEROXIDE, WHICH COMPRISES CONTACTING SAID SOLUTION WITH SOLID POLYETHYLENE CONTINUING THE CONTACT UNTIL A SUBSTANTIAL AMOUNT OF THE COLOR HAS BEEN REMOVED FROM THE SOLUTION, AND RECOVERING THE SOLUTION FROM THE POLYMER.
References Cited (Backward Citations)
US2695217A
Cited
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 |