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US3453200A
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Apparatus for density gradient electrophoresis
Assignee: Instrumentation Specialties Co
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Filing: 1966-05-25
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Granted: 1969-07-01
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Expires: 1986-05-25
Abstract
No abstract record available.
Inventors
- 👤 Robert W Allington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:02
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/20; B; B01; B01D; B01D57/00; B01D57/02; G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756; G01N27/4476
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3326790A
Cited
US3346479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |