US3097141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Immunological method
Assignee: Individual
•
Filing: 1959-02-26
•
Granted: 1963-07-09
•
Expires: 1979-02-26
Abstract
No abstract record available.
Inventors
- 👤 Kidwell Elizabeth N Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:14
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/02; Y; Y02; Y02A; Y02A50/00; Y02A50/30; Y10; Y10S; Y10S435/00; Y10S435/803
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD OF REDUCING THE TOXICITY OF AN ANTIGEN WHILE RETAINING ITS ANTIGENICITY, WHICH COMPRISES TREATING THE ANTIGEN BY ADDING THERETO A PROTEOLYTIC ENZYME, ADDING TO THE TREATED ANTIGEN AN OXIDIZING AGENT, HEATING SAID OXIDIZED AND TREATED ANTIGEN FOR ABOUT 15-28 HOURS AT A TEMPERATURE IN THE RANGE OF ABOUT 50*-100*C., AND CONTACTING THE HEATED RESULTANT WITH AN ION EXCHANGE RESIN.
Claim 2
Independent Claim
61 words
A METHOD OF REDUCING THE TOXICITY OF AN ANTIGEN WHILE RETAINING ITS ANTIGENICITY, WHICH COMPRISES TREATING THE ANTIGEN BY ADDING THERETO A PROTEOLYTIC ENZYME, ADDING TO THE TREATED ANTIGEN AN OXIDIZING AGENT, HEATING SAID OXIDIZED AND TREATED ANTIGEN FOR ABOUT 15-28 HOURS AT A TEMPERATURE IN THE RANGE OF ABOUT 50*-100*C., AND CONTACTING THE HEATED RESULTANT WITH AN ION EXCHANGE RESIN.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |