US3236442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionic vacuum pump
Assignee: MORRIS ASSOCIATES
•
Filing: 1964-01-20
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Granted: 1966-02-22
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Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Lewis A Davis
- 👤 Richard T Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:39
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/12; H01J41/18; H01J41/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN AN IONIC PUMP, A PUMP HOUSING, A CONTAINER CENTRALLY LOCATED WITHIN SAID HOUSING, MEANS FOR GENERATING A MAGNETIC FIELD LOCATED WITHIN SAID CONTAINER, A CRYOGENIC COOLANT CONTAINED WITHIN SAID CONTAINER, A VACUUM CHAMBER BEING FORMED BETWEEN THE OUTER WALLS OF SAID CONTAINER AND THE INNER WALLS OF SAID HOUSING, AN ANODE ASSEMBLY AND A CATHODE ASSEMBLY CONTAINED WITHIN SAID VACUUM CHAMBER, AND MEANS FOR SUPPORTING SAID ANODE ASSEMBLY AND SAID CATHODE ASSEMBLY IN EXTERNAL CONCENTRICITY WITH SAID CONTAINER.
Claim 2
Dependent Claim
79 words
IN AN IONIC PUMP, A PUMP HOUSING, A CONTAINER CENTRALLY LOCATED WITHIN SAID HOUSING, MEANS FOR GENERATING A MAGNETIC FIELD LOCATED WITHIN SAID CONTAINER, A CRYOGENIC COOLANT CONTAINED WITHIN SAID CONTAINER, A VACUUM CHAMBER BEING FORMED BETWEEN THE OUTER WALLS OF SAID CONTAINER AND THE INNER WALLS OF SAID HOUSING, AN ANODE ASSEMBLY AND A CATHODE ASSEMBLY CONTAINED WITHIN SAID VACUUM CHAMBER, AND MEANS FOR SUPPORTING SAID ANODE ASSEMBLY AND SAID CATHODE ASSEMBLY IN EXTERNAL CONCENTRICITY WITH SAID CONTAINER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |