US2603585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of gonadotropic hormones with a basic protein
Assignee: Leo AB
•
Filing: 1948-10-08
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Granted: 1952-07-15
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Expires: 1968-10-08
Abstract
No abstract record available.
Inventors
- 👤 Claesson Karl Erik Lennart
- 👤 Hogberg Knut Bertil
- 👤 Rosenberg Ernst Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:11
CPC Classifications
A; A61; A61K; A61K38/00; A61K38/16; A61K38/17; A61K38/22; A61K38/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
IN A PROCESS OF PURIFYING GONADOTROPIC HORMONES THE STEP OF TREATING AN AQUEOUS SOLUTION OF SAID HORMONES IN A PRELIMINARY PURIFIED STATE WITH A BASIC PROTEIN AT A PH IN THE VICINITY OF THE
Claim 2
Dependent Claim
34 words
IN A PROCESS OF PURIFYING GONADOTROPIC HORMONES THE STEP OF TREATING AN AQUEOUS SOLUTION OF SAID HORMONES IN A PRELIMINARY PURIFIED STATE WITH A BASIC PROTEIN AT A PH IN THE VICINITY OF THE
References Cited (Backward Citations)
US2007328A
Cited
US2312901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |