US3119740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing purified follicle stimulating hormone
Assignee: Armour Pharmaceutical Co
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Filing: 1959-04-13
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Granted: 1964-01-28
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Expires: 1979-04-13
Abstract
No abstract record available.
Inventors
- 👤 Sanford L Steelman
- 👤 Thomas L Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:52
CPC Classifications
A; A61; A61K; A61K38/00; A61K38/16; A61K38/17; A61K38/22; A61K38/24; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/854
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN A PROCESS FOR PREPARING A PITUITARY FOLLICLE STIMULATING HORMONE PREPARATION SUITABLE FOR PARENTERAL ADMINISTRATION, THE STEPS OF CONTACTING A SOLUTION OF FSHCONTAINING MATERIAL WITH CELLULOSE CONTAINING ANION EXCHANGE GROUPS AT A PH ALKALINE TO THE ISOELECTRIC POINT OF FSH AND A MOLARITY OF LESS THAN 0.1 TO ADSORB THE FSH ON SAID ANION EXCHANGER, AND CONTACTING THE RESULTING ADSORBATE WITH AN AQUEOUS SOLUTION HAVE A PH ALKALINE TO THE ISOELECTRIC JPOINT OF FSH AND A MOLARITY OF AT LEAST 0.1 SELECTIVELY ELUTE THE ADSORBED FSH.
Claim 2
Dependent Claim
86 words
IN A PROCESS FOR PREPARING A PITUITARY FOLLICLE STIMULATING HORMONE PREPARATION SUITABLE FOR PARENTERAL ADMINISTRATION, THE STEPS OF CONTACTING A SOLUTION OF FSHCONTAINING MATERIAL WITH CELLULOSE CONTAINING ANION EXCHANGE GROUPS AT A PH ALKALINE TO THE ISOELECTRIC POINT OF FSH AND A MOLARITY OF LESS THAN 0.1 TO ADSORB THE FSH ON SAID ANION EXCHANGER, AND CONTACTING THE RESULTING ADSORBATE WITH AN AQUEOUS SOLUTION HAVE A PH ALKALINE TO THE ISOELECTRIC JPOINT OF FSH AND A MOLARITY OF AT LEAST 0.1 SELECTIVELY ELUTE THE ADSORBED FSH.
References Cited (Backward Citations)
US2759787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |