US3069895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromatographic analyzer peak reader
Assignee: Phillips Petroleum Co
•
Filing: 1958-04-10
•
Granted: 1962-12-25
•
Expires: 1978-04-10
Abstract
No abstract record available.
Inventors
- 👤 Marvin C Burk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:44
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/86; G01N30/8624
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2826908A
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US2340880A
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US2464249A
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US2448322A
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US2544922A
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US2511671A
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US2875606A
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US2928002A
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US2904384A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |