US2699060A
Expired / Lapsed
US
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Catalyst testing apparatus
Assignee: Sinclair Refining Co
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Filing: 1954-01-07
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Granted: 1955-01-11
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Expires: 1974-01-07
Abstract
No abstract record available.
Inventors
- 👤 Donald E Safford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:52
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/08; G01N3/18; B; B01; B01J; B01J37/00; B01J37/0009; G01N2203/00; G01N2203/0014; G01N2203/0016; G01N2203/0019; G01N2203/003; G01N2203/0042; G01N2203/0058; G01N2203/0076; G01N2203/0087; G01N2203/02; G01N2203/022; G01N2203/0222; G01N2203/026; G01N2203/0284
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) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |