Patent US3004544A successfully refreshed from Google Patents.
US3004544A
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US
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Continuously measuring slurry density
Assignee: Texaco Inc
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Filing: 1955-12-29
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Granted: 1961-10-17
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank E Guptill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:09
CPC Classifications
G; G01; G01N; G01N9/00; G01N9/02; G01N9/04; G01N9/06; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/2496; Y10T137/2499; Y10T137/2504; Y10T137/4891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1511604A
Cited
US2321175A
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US2311312A
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US2432039A
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US2669118A
Cited
US2745484A
Cited
US2719018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |