Patent US3284301A successfully refreshed from Google Patents.
US3284301A
Expired / Lapsed
US
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Plasmin sterilization
Assignee: Wyeth Holdings LLC
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Filing: 1963-08-28
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Granted: 1966-11-08
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Expires: 1983-08-28
Abstract
No abstract record available.
Inventors
- 👤 Schor Joseph Martin
- 👤 Renzo Edward Clarence De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:31
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/48; C12N9/50; C12N9/64; C12N9/6421; C12N9/6424; C12N9/6435; C12Y; C12Y304/00; C12Y304/21; C12Y304/21007; A; A61; A61K; A61K38/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A METHOD OF TREATING PASMIN WHICH COMPRISES HEAT-TREATING AT A TEMPERATURE OF ABOUT 60*C. FOR ABOUT 10 HOURS AN AQUEOUS SOLUTION OF NOT MORE THAN 10 PERCENT BY WEIGHT OF PLASMIN HAVING A PH BETWEEN ABOUT 0.3-4.5.
Claim 2
Independent Claim
37 words
A METHOD OF TREATING PASMIN WHICH COMPRISES HEAT-TREATING AT A TEMPERATURE OF ABOUT 60*C. FOR ABOUT 10 HOURS AN AQUEOUS SOLUTION OF NOT MORE THAN 10 PERCENT BY WEIGHT OF PLASMIN HAVING A PH BETWEEN ABOUT 0.3-4.5.
References Cited (Backward Citations)
US2897123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |