US3267860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrohydrodynamic fluid pump
Assignee: Individual
•
Filing: 1964-12-31
•
Granted: 1966-08-23
•
Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Brown Thomas Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:49
CPC Classifications
H; H02; H02N; H02N11/00; H02N11/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A PUMP FOR DIELECTRIC FLUIDS COMPRISING AN INSULATED TUBE THROUGH WHICH SAID FLUIDS MAY PASS, AN EQUISPACED SERIES OF BAFFLES IN THE FORM OF ELECTRICALLY CONDUCTING ANNULAR TRUNCATED CONES, EACH HAVING AN OUTER SURFACE ENGAGING SAID TUBE, SAID CONES BEING AXIALLY ALIGNED WITHIN SAID TUBE AND ALL BUT ONE OF SAID ELECTRODES
Claim 2
Dependent Claim
52 words
A PUMP FOR DIELECTRIC FLUIDS COMPRISING AN INSULATED TUBE THROUGH WHICH SAID FLUIDS MAY PASS, AN EQUISPACED SERIES OF BAFFLES IN THE FORM OF ELECTRICALLY CONDUCTING ANNULAR TRUNCATED CONES, EACH HAVING AN OUTER SURFACE ENGAGING SAID TUBE, SAID CONES BEING AXIALLY ALIGNED WITHIN SAID TUBE AND ALL BUT ONE OF SAID ELECTRODES
References Cited (Backward Citations)
US1928963A
Cited
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Cited
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Cited
US2333144A
Cited
US2578908A
Cited
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Cited
FR1246669A
Cited
US3054553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |