US3791950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophoresis method
Assignee: Instrumentation Specialties Co
•
Filing: 1973-05-11
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Granted: 1974-02-12
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Expires: 1993-05-11
Abstract
Abstract THAT THE DIFFERENT SPECIES CAN BE SCANNED AND COLLECTED USING TECHNIQUES AND APPARATUS THAT REQUIRE BULK FLOW OF THE MEDIUM, WITH FURTHER ELECTROPHORES IN THE COLLECTING MEDIUM PROVIDING FURTHER SEPARATION. TO SEPARATE AND COLLECT DIFFERENT MOLECULAR SPECIES IN A MIXTURE OF THE SPECIES, THE MIXTURE IS FIRST ELECTROPHORESED IN A GEL SUCH AS A POLYACRYLAMIDE GEL TO OBTAIN GOOD RESOLUTION OF AT LEAST SOME OF THE DIFFERENT SPECIES AND THEN ELECTROPHORESED INTO A COLLECTING MEDIUM HAVING BU;K FLOW CHARACTERISTICS SUCH AS A DENSITY GRADIENT COLUMN SO
Inventors
- 👤 W Allington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:52
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756; G01N27/44773; G01N27/4476; G01N27/44782
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3594294A
Cited
US3630882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |