US3649499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for establishing the zones occurring in electrophoresis and for their quantitative determination
Assignee: Individual
•
Filing: 1969-03-24
•
Granted: 1972-03-14
•
Expires: 1989-03-24
Abstract
Abstract A METHOD IS PROVIDED FOR ESTABLISHING ZONES OCCURRING IN ELECTROPHORESIS AND FOR QUANTITIVELY DETERMINING SUBSTANCES PRESENT IN THEM. THE METHOD IS CHARACTERIZED BY MEASURING IN THE ELECTROPHORESIS SYSTEM THE ELECTROCHEMICAL POTENTIAL OF AN ELECTRODE PLACED AT A GIVEN POINT BETWEEN END ELECTRODES OR CONNECTED BY A SALT BRIDGE, OR BY MEASURING THE CHANGE OF THIS POTENTIAL AS A FUNCTION OF TIME WITH RESPECT TO A REFERENCE ELECTRODE.
Inventors
- 👤 Rauno Erkki Virtanen
- 👤 Pekka Kivalo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:04
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; G01N27/44717; G01N27/4473
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |