US2717237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of chlorine dioxide
Assignee: Bayer AG
•
Filing: 1952-06-25
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Granted: 1955-09-06
•
Expires: 1972-06-25
Abstract
No abstract record available.
Inventors
- 👤 Erika G Rempel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:42
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/24; C25B1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
IN THE PROCESS FOR THE PRODUCTION OF SUBSTANTIALLY CHLORINE-FREE CHLORINE DIOXIDE BY ELECTROLYSIS OF A CHLORITE, THE IMPROVEMENT WHICH COMPRISES ELECTROLYZING AN QUEOUS SOLUTION OF A CHLORITE IN THE PRESENCE OF A WATER-SOLUBLE METAL SULFATE.
Claim 2
Dependent Claim
35 words
IN THE PROCESS FOR THE PRODUCTION OF SUBSTANTIALLY CHLORINE-FREE CHLORINE DIOXIDE BY ELECTROLYSIS OF A CHLORITE, THE IMPROVEMENT WHICH COMPRISES ELECTROLYZING AN QUEOUS SOLUTION OF A CHLORITE IN THE PRESENCE OF A WATER-SOLUBLE METAL SULFATE.
References Cited (Backward Citations)
US2163793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |