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US3496702A
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Chromatographic analysis method and apparatus
Assignee: ConocoPhillips Co
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Filing: 1968-10-14
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Granted: 1970-02-24
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Expires: 1988-10-14
Abstract
No abstract record available.
Inventors
- 👤 Alfred B Carel
- 👤 Donald J Haase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:31
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/06; G01N30/12; G01N30/26; G01N30/28; G01N30/30; G01N2030/3076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3136616A
Cited
US3366149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |