US3239418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pituitary growth hormone promoter and method of using same
Assignee: Merck Sharp & Dohme LLC
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Filing: 1962-11-06
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Granted: 1966-03-08
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Expires: 1982-11-06
Abstract
No abstract record available.
Inventors
- 👤 Perlman Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:12
CPC Classifications
A; A61; A61K; A61K38/00; A61K38/16; A61K38/17; A61K38/22; A61K38/27; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/854
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR PREPARING A PITUITARY GROWTH HORMONE PROMOTER WHICH COMPRISES PRECIPITATING SAID GROWTH HORMONE PROMOTER FROM A WEALKY ACID AQUEOUS EXTRACT OF MAMMALIAN HYPOTHALAMIC OR PITUITARY TISSUE, BY TREATMENT OF SAID EXTRACT WITH A PROTEIN FRACTIONATING AGENT, ABSORBING THE PRECIPITATED GROWTH HORMONE PROMOTER ONTO A WEAKLY ACID CATIONIC EXCHANGE RESIN AND SUBSEQUENTLY ISOLATING SAID GROWTH HORMONE PROMOTER FROM SAID CATIONIC EXCHANGE RESIN BY ELUTION WITH AN ALKALINE ELUENT.
Claim 2
Dependent Claim
69 words
A PROCESS FOR PREPARING A PITUITARY GROWTH HORMONE PROMOTER WHICH COMPRISES PRECIPITATING SAID GROWTH HORMONE PROMOTER FROM A WEALKY ACID AQUEOUS EXTRACT OF MAMMALIAN HYPOTHALAMIC OR PITUITARY TISSUE, BY TREATMENT OF SAID EXTRACT WITH A PROTEIN FRACTIONATING AGENT, ABSORBING THE PRECIPITATED GROWTH HORMONE PROMOTER ONTO A WEAKLY ACID CATIONIC EXCHANGE RESIN AND SUBSEQUENTLY ISOLATING SAID GROWTH HORMONE PROMOTER FROM SAID CATIONIC EXCHANGE RESIN BY ELUTION WITH AN ALKALINE ELUENT.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |