US3548637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Velocity profile sensor system for control of a slurry pipeline
Assignee: Shell USA Inc
•
Filing: 1969-04-11
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Granted: 1970-12-22
•
Expires: 1989-04-11
Abstract
No abstract record available.
Inventors
- 👤 Moye Wicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:19
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/02; G01F; G01F1/00; G01F1/68; G01F1/684
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2828479A
Cited
US2780094A
Cited
US3030806A
Cited
US3085431A
Cited
GB1035368A
Cited
US3464269A
Cited
NL6704596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |