Patent US2935908A successfully refreshed from Google Patents.
US2935908A
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Apparatus for chromatographic analysis
Assignee: PHILLIPS SCIENT CORP
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Filing: 1956-08-16
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Granted: 1960-05-10
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Expires: 1976-08-16
Abstract
No abstract record available.
Inventors
- 👤 Jr John J Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:00
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/26; G01N30/38; G01N30/46; G01N30/466; G01N30/62; G01N30/74; G01N30/60; G01N30/6034; G01N30/6043; G01N30/6047; G01N30/6052; G01N30/6082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1375708A
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US1729106A
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GB342757A
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US2096696A
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US2056693A
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US2377056A
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US2553179A
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US2673484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |