US3772189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iodine treated activated carbon and process of treating contaminated water therewith
Assignee: Culligan International Co
•
Filing: 1972-01-27
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Granted: 1973-11-13
•
Expires: 1992-01-27
Abstract
Abstract A process of treating water with activated carbon which has been made bacteriostatic by the homogeneous absorption of iodine thereby. The activated carbon is treated with an iodine solution to provide a reversible absorption of the elemental iodine by the carbon so that the carbon will release the iodine to treat contaminated water.
Inventors
- 👤 E Kreusch
- 👤 F Husseini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:28
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F1/766; C02F1/28; C02F1/283
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
37 words
The process of claim 1 wherein bacterially contaminated water is passed through said so rinsed and mixed iodine treated carbon bed thereby releasing the previously absorbed iodine to treat the water and reduce the bacterial content thereof.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |