US3360904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sample fractionating apparatus
Assignee: ConocoPhillips Co
•
Filing: 1966-08-22
•
Granted: 1968-01-02
•
Expires: 1986-08-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Gerald Perkins
- 👤 Alfred B Carel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:41
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/26; G01N30/38; G01N30/46; G01N30/461; G01N30/60; G01N30/6034; G01N30/6039; G01N30/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1715854A
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GB603598A
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US3234779A
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US2989443A
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US2932490A
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US2960183A
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US3016106A
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US3164644A
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US3225521A
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US3267646A
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US3267647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |