US2884367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for controlling current density during continuous paper electrophoresis
Assignee: KARLER
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Filing: 1954-05-10
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Granted: 1959-04-28
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Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Karler Arthur
- 👤 Leonard F Deckard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:35
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756; G01N27/44769
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
IN AN ELECTROPHORETIC SEPARATOR INCLUDING A VERTICALLY DISPOSED CURTAIN HAVING UPPER AND LOWER HORIZONTAL EDGES, AND VERTICAL SIDE EDGES; TWO ELONGATED ELECTRODES LONGITUDINALLY EXTENDING ALONG AND IN ELECTRICAL CONTACT WITH SIDE EDGE OF SAID CURTAIN; TRANSVERSELY EXTENDING ELECTROLYTIC FEED MEANS FOR SUPPLYING AN ELECTROLYTE TO THE UPPER EDGE OF SAID CURTAIN; AND SAMPLE RECEIVING MEANS LOCATED BELOW SAID ELECTROLYTIC FEED MEANS; THE IMPROVEMENT WHICH COMPRISES A PLURALITY OF HORIZONTALLY
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) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |