US3558459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diagnostic agents and method for immuno-electrophoretic assay of mammalian gamma globulins
Assignee: Phadia AB
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Filing: 1967-11-13
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Granted: 1971-01-26
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Expires: 1987-11-13
Abstract
Abstract A METHOD OF ENHANCING THE ELECTROPHORETIC MOBILITY OF IMMUNOLOGICALLY ADEQUATE MAMMALIAN SOURCE ANTIGAMMA GLOBULINS WITHOUT IMPAIRMENT OF THE IMMUNOLOGICAL REACTIVITY, COMPRISING ADMIXING SAID ANTIGAMMA GLOBULINS WITH AN ALIPHATIC ACYLATING AGENT WHEREBY SAID GLOBULINS ARE CHEMICALLY BLOCKED.
Inventors
- 👤 Bengt Ragnar Gustaf Granstrand
- 👤 Nils Hugo Vihelm Nihlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:56
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/558; G01N33/561; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; G01N27/44747
Claims Analysis
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |