US2675341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protein hydrolysate detoxified by polyvinyl pyrrolidone
Assignee: GAF Chemicals Corp
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Filing: 1949-12-28
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Granted: 1954-04-13
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Expires: 1969-12-28
Abstract
No abstract record available.
Inventors
- 👤 Herman A Shelanski
- 👤 Cantor Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:49
CPC Classifications
A; A61; A61K; A61K38/00; A61K38/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
THE PROCESS OF REDUCING THE ENDOGENOUS TOXICITY OF PHARMACEUTICAL PROTEIN HYDROLYSATE PRODUCTS WHICH COMPRISES COMBINING WITH SAID PRODUCTS POLYVINYLPYRROLIDONE IN PHARMACOLOGICALLY ACCEPTABLE CONCENTRATIONS, WHEREBY THE TOXICITY OF SAID PROTEIN HYDROLYSATE IS SUBSTANTIALLY REDUCED.
Claim 2
Dependent Claim
33 words
THE PROCESS OF REDUCING THE ENDOGENOUS TOXICITY OF PHARMACEUTICAL PROTEIN HYDROLYSATE PRODUCTS WHICH COMPRISES COMBINING WITH SAID PRODUCTS POLYVINYLPYRROLIDONE IN PHARMACOLOGICALLY ACCEPTABLE CONCENTRATIONS, WHEREBY THE TOXICITY OF SAID PROTEIN HYDROLYSATE IS SUBSTANTIALLY REDUCED.
References Cited (Backward Citations)
US2411897A
Cited
US2474729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |