US3328178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sterilizing
Assignee: Individual
•
Filing: 1964-01-27
•
Granted: 1967-06-27
•
Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Alderton Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:58
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/30; A23B2/70; A23B2/725; A23B2/788
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METHOD FOR STERILIZING A MATERIAL CONTAMINATED WITH MICROBIAL SPORES WHICH COMPRISES CONTACTING THE MATERIAL WITH AN ACID IN A CONCENTRATION INSUFFICIENT PER SE TO CCAUSE ANY SUBSTANTIAL DIRECT DESTRUCTION OF THE SPORES, MAINTAINING THE MATERIAL IN CONTACT WITH SAID ACID FOR A PERIOD SUFFICIENT TO OBTAIN STRIPPING OF METAL IONS FROM THE SPORES WHEREBY TO CAUSE A SUBSTANTIAL REDUCTION IN THE THERMAL RESISTANCE OF THE SPORES, RESTORING THE ACID-TREATED MATERIAL TO SUBSTANTIALLY ITS ORIGINAL PH, AND WITHOUT ANY SUBSTANTIAL DELAY SUBJECTING IT TO HEAT AT A TEMPERATURE AND FOR A TIME SUFFICIENT TO PRODUCE AN ESSENTIALLY STERILE PRODUCT, THE COMBINATION OF TEMPERATURE AND TIME OF HEATING BEING SUBSTANTIALLY LESS THAN WOULD BE REQUIRED TO ATTAIN STERILITY IN THE ABSENCE OF SAID ACID TREATMENT.
Claim 2
Independent Claim
124 words
A METHOD FOR STERILIZING A MATERIAL CONTAMINATED WITH MICROBIAL SPORES WHICH COMPRISES CONTACTING THE MATERIAL WITH AN ACID IN A CONCENTRATION INSUFFICIENT PER SE TO CCAUSE ANY SUBSTANTIAL DIRECT DESTRUCTION OF THE SPORES, MAINTAINING THE MATERIAL IN CONTACT WITH SAID ACID FOR A PERIOD SUFFICIENT TO OBTAIN STRIPPING OF METAL IONS FROM THE SPORES WHEREBY TO CAUSE A SUBSTANTIAL REDUCTION IN THE THERMAL RESISTANCE OF THE SPORES, RESTORING THE ACID-TREATED MATERIAL TO SUBSTANTIALLY ITS ORIGINAL PH, AND WITHOUT ANY SUBSTANTIAL DELAY SUBJECTING IT TO HEAT AT A TEMPERATURE AND FOR A TIME SUFFICIENT TO PRODUCE AN ESSENTIALLY STERILE PRODUCT, THE COMBINATION OF TEMPERATURE AND TIME OF HEATING BEING SUBSTANTIALLY LESS THAN WOULD BE REQUIRED TO ATTAIN STERILITY IN THE ABSENCE OF SAID ACID TREATMENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |