US3255100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elution electrophoresis
Assignee: Individual
•
Filing: 1964-09-15
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Granted: 1966-06-07
•
Expires: 1984-09-15
Abstract
No abstract record available.
Inventors
- 👤 Raymond Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:27
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; G01N27/44717; G01N27/4473
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A PROCESS FOR PREPARING PURE CONCENTRATED COMPOPHORETICALLY ACTIVE MATERIAL, THE PROCESS COMPRISING: FIRST, SEPARATING THE FRACTIONS OF THE CMPLEX SUBSTANCE INTO GENERALLY PARALLEL ZONES BY ELECTROPHORESIS IN A PLANAR ELECTROPHORETIC MEDIUM THEN ELECTROPHORETICALLY ELUTING THE SEPARATE FRACTIONS IN THE PARALLEL ZONES WHILE THE FRACTIONS ARE TRANSPORTED IN A BUFFER SOLUTION BY AN ELECTRIC FIELD PASSING THROUGH THE PLANAR ELECTROPHORETIC MEDIUM AT AN ANGLE TO THE PLANE MEDIUM, KEEPING THE ELUTED FRACTIONS IN BUFFER SOLUTION SEPARATED FROM EACH OTHER, AND CONCENTRATING AND COLLECTING THE ELUTED FRACTIONS IN SEPARATE ZONES BY TRANSPORTING THE ELUUTED FRACTIONS BY A SEPARATE CURRENT OF BUFFER SOLUTION FOR EACH SUCH FRACTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |