US3024643A
Expired / Lapsed
US
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Apparatus and method for continuously determining viscosity
Assignee: Texaco Inc
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Filing: 1957-03-20
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Granted: 1962-03-13
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Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Jr James M Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:39
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/02; G01N11/04; G01N11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2266947A
Cited
US2322814A
Cited
GB657696A
Cited
US2645461A
Cited
US2596812A
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US2705420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |