Patent US3767560A successfully refreshed from Google Patents.
US3767560A
Expired / Lapsed
US
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Method and apparatus for forming electrophoresis apparatus and the like
Assignee: Individual
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Filing: 1972-01-12
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Granted: 1973-10-23
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Expires: 1992-01-12
Abstract
Abstract Thin film apparatus for electrophoresis, chemical analyses and the like is provided, the film being an aqueous gel such as agarose gel; continuous and semicontinuous methods of production are provided; and apparatus for such methods.
Inventors
- 👤 F Elevitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:01
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; G01N27/44717; G01N27/44721; G01N27/44747; G01N27/44756; G01N31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
Apparatus of claim 1 wherein said layers of gel have a thickness not exceeding about one millimeter.
Claim 2
Dependent Claim
48 words
Permeable gel apparatus adapted for diffusion analysis comprising a continuous strip of flexible base material and a layer of aqueous, permeable gel adhering to one surface of the base, the other surface of the base being non-adherent to the gel, said strip being rolled up into cylindrical form.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |