US2965114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling the pumping of fluids in a pipeline
Assignee: Shell USA Inc
•
Filing: 1957-10-14
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Granted: 1960-12-20
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Expires: 1977-10-14
Abstract
No abstract record available.
Inventors
- 👤 Gail D Harden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:48
CPC Classifications
F; F17; F17D; F17D3/00; F17D3/03; F17D3/08; F16; F16L; F16L2101/00; F16L2101/40; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/4891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1808870A
Cited
US2623226A
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US2705419A
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US2685685A
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US2796878A
Cited
US2790500A
Cited
US2729839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |