US3257315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterilization of water
Assignee: Pall Corp
•
Filing: 1963-12-13
•
Granted: 1966-06-21
•
Expires: 1983-12-13
Abstract
No abstract record available.
Inventors
- 👤 David B Pall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:21
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; C02F1/505
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS FOR STERILIZING WATER INTENDED FOR HUMAN CONSUMPTION COMPRISING FLOWING THE WATER TO BE STERILIZED INTO CONTACT WITH SOLID SILVER BROMIDE COATED ON AN INERT PARTICULATE CARRIER BY SINTERING THEREWITH AT A SINTERING TEMPERATURE WITHIN THE RANGE FROM ABOUT 475* TO ABOUT 550* C., THEREBY BEING PUT IN A SURFACE CONDITION TO OBTAIN A NON-TOXIC STERILIZING CONCENTRATION OF SILVER ION IN SOLUTION IN THE WATER.
Claim 2
Dependent Claim
66 words
A PROCESS FOR STERILIZING WATER INTENDED FOR HUMAN CONSUMPTION COMPRISING FLOWING THE WATER TO BE STERILIZED INTO CONTACT WITH SOLID SILVER BROMIDE COATED ON AN INERT PARTICULATE CARRIER BY SINTERING THEREWITH AT A SINTERING TEMPERATURE WITHIN THE RANGE FROM ABOUT 475* TO ABOUT 550* C., THEREBY BEING PUT IN A SURFACE CONDITION TO OBTAIN A NON-TOXIC STERILIZING CONCENTRATION OF SILVER ION IN SOLUTION IN THE WATER.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |