US3606595A
Expired / Lapsed
US
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Electromagnetic pump utilizing a permanent magnet
Assignee: Jidosha Kiki Co Ltd
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Filing: 1970-01-20
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Granted: 1971-09-20
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Expires: 1990-01-20
Abstract
Abstract AN ELECTROMAGNETIC PUMP IN WHICH A FLUID CAN BE PUMPED UP BY MEANS OF A RECIPROCATING MOTION OF A MAGNECTIC ARMATURE MOVED BY ATTRACTIVE AND REPULSIVE FORCES WHICH ACT ALTERNATELY BETWEEN TWO PERMANENT MAGNETS INSERTED IN A RESIN MOLDED PUMP BODY AND THE MOVABLE MAGNETIC ARMATURE MAGNETIZED BY AN ALTERNATING CURRENT.
Inventors
- 👤 Hideo Takamizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:53
CPC Classifications
F; F04; F04B; F04B17/00; F04B17/03; F04B17/04; F04B17/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |