Patent US2834729A successfully refreshed from Google Patents.
US2834729A
Expired / Lapsed
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Electrophoresis apparatus
Assignee: Beckman Coulter Inc
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Filing: 1955-02-24
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Granted: 1958-05-13
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Expires: 1975-02-24
Abstract
No abstract record available.
Inventors
- 👤 Edward G Pickels
- 👤 Philip F Scofield
- 👤 Fred G Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:30
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; G01N27/44756
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN PAPER STRIP ELECTROPHORESIS APPARATUS, CONTAINER MEANS FORMING TWO CELLS FOR ELECTROLYTE, A RACK COMPRISING TWO SIDE PORTIONS HINGEDLY CONNECTED TOGETHER, SAID SIDE PORTIONS HAVING MEANS THEREON FOR ENGAGING END PORTION OF PAPER STRIPS, SUPPORT MEANS CARRIED BY THE CONTAINER MEANS FOR SUPPORTING SAID RACK AND SAID STRIPS WITH THE SIDE PORTIONS OF THE RACK SWUNG DOWNWARDLY TO THEREBY ESTABLISH ELECTRICAL CONTACT BETWEEN THE EXTREMITIES OF THE STRIPS AND THE ELECTROLYTE OF THE CELLS, SAID HINGED RACK BEING READILY REMOVABLE FROM SAID SUPPORTING MEANS AT THE END OF A RUN.
Claim 2
Dependent Claim
90 words
IN PAPER STRIP ELECTROPHORESIS APPARATUS, CONTAINER MEANS FORMING TWO CELLS FOR ELECTROLYTE, A RACK COMPRISING TWO SIDE PORTIONS HINGEDLY CONNECTED TOGETHER, SAID SIDE PORTIONS HAVING MEANS THEREON FOR ENGAGING END PORTION OF PAPER STRIPS, SUPPORT MEANS CARRIED BY THE CONTAINER MEANS FOR SUPPORTING SAID RACK AND SAID STRIPS WITH THE SIDE PORTIONS OF THE RACK SWUNG DOWNWARDLY TO THEREBY ESTABLISH ELECTRICAL CONTACT BETWEEN THE EXTREMITIES OF THE STRIPS AND THE ELECTROLYTE OF THE CELLS, SAID HINGED RACK BEING READILY REMOVABLE FROM SAID SUPPORTING MEANS AT THE END OF A RUN.
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) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |