Patent US3474908A successfully refreshed from Google Patents.
US3474908A
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US
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Chromatography apparatus
Assignee: Technicon Corp
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Filing: 1965-12-23
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Granted: 1969-10-28
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 George N Catravas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:00
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/96; B; B01; B01J; B01J39/00; B01J39/26; G01N30/02; G01N30/04; G01N30/16; G01N30/60; G01N30/6004; G01N30/6021; G01N30/80; G01N30/6034
Claims Analysis
Total Claims: 0
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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) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |