US3187206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrokinetic apparatus
Assignee: Electrokinetics Inc
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Filing: 1958-05-09
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Granted: 1965-06-01
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Expires: 1978-05-09
Abstract
No abstract record available.
Inventors
- 👤 Brown Thomas Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:00
CPC Classifications
F; F03; F03H; F03H1/00; C; C08; C08L; C08L93/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A DEVICE FOR PRODUCING THRUST COMPRISING A FIELD SHAPING SURFACE FORMED OF STITCHED, CLOSELY SPACED CONDUCTORS AND HAVING A DIELECTRIC MATERIAL THEREBETWEEN TO DEFINE A SMOOTH SURFACE, A DIELECTRIC MEMBER CONNECTED TO SAID FIELD SHAPING SURFACE AND AN ELECTRODE ON THE END OF SAID DIELECTRIC MEMBER REMOTE FROM SAID FIELD SHAPING SURFACE, AND MEANS FOR APPLYING ELECTRICAL POTENTIAL BETWEEN SAID ELECTRODE AND SAID CLOSELY SPACED CONDUCTORS.
Claim 2
Independent Claim
66 words
A DEVICE FOR PRODUCING THRUST COMPRISING A FIELD SHAPING SURFACE FORMED OF STITCHED, CLOSELY SPACED CONDUCTORS AND HAVING A DIELECTRIC MATERIAL THEREBETWEEN TO DEFINE A SMOOTH SURFACE, A DIELECTRIC MEMBER CONNECTED TO SAID FIELD SHAPING SURFACE AND AN ELECTRODE ON THE END OF SAID DIELECTRIC MEMBER REMOTE FROM SAID FIELD SHAPING SURFACE, AND MEANS FOR APPLYING ELECTRICAL POTENTIAL BETWEEN SAID ELECTRODE AND SAID CLOSELY SPACED CONDUCTORS.
References Cited (Backward Citations)
US1974483A
Cited
FR1003484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |