Patent US3049908A successfully refreshed from Google Patents.
US3049908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Programmer-integrator for chromatographic analyzer
Assignee: Phillips Petroleum Co
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Filing: 1958-08-15
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Granted: 1962-08-21
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Expires: 1978-08-15
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Kindred
- 👤 Marvin C Burk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:54
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/4216; G; G01; G01N; G01N30/00; G01N30/02; G01N30/86; G01N30/8603
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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |