Patent US3203865A successfully refreshed from Google Patents.
US3203865A
Expired / Lapsed
US
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Hog serum antibody concentrate
Assignee: Dow Chemical Co
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Filing: 1962-11-30
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Granted: 1965-08-31
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Koehler Alexander
- 👤 William H Dazey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:16
CPC Classifications
C; C07; C07K; C07K16/00; C07K16/08; C07K16/10; C07K16/116
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN A METHOD FOR THE PRODUCTION OF A HOG ANTIBODY CONCENTRATE WHEREIN A PROTEIN FRACTION COMPRISING SAID ANTIBODIES IS PRECIPITATED FROM CLARIFIED HOG SERUM BY THE ACTION OF AMMONIUM SULFATE, THE IMPROVEMENT WHICH COMPRISES REDISPERSING THE PRECIPITATED ANTIBODY FRACTION IN AN AQUEOUS MEDIUM BY DIALYZING AGAINST AN AQUEOUS 0.85 PERCENT SODIUM CHLORIDE SOLUTION.
Claim 2
Dependent Claim
53 words
IN A METHOD FOR THE PRODUCTION OF A HOG ANTIBODY CONCENTRATE WHEREIN A PROTEIN FRACTION COMPRISING SAID ANTIBODIES IS PRECIPITATED FROM CLARIFIED HOG SERUM BY THE ACTION OF AMMONIUM SULFATE, THE IMPROVEMENT WHICH COMPRISES REDISPERSING THE PRECIPITATED ANTIBODY FRACTION IN AN AQUEOUS MEDIUM BY DIALYZING AGAINST AN AQUEOUS 0.85 PERCENT SODIUM CHLORIDE SOLUTION.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |