US3112864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular electronic ultrahigh vacuum pump
Assignee: Ultek Corp
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Filing: 1959-09-25
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Granted: 1963-12-03
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Expires: 1979-09-25
Abstract
No abstract record available.
Inventors
- 👤 Lewis D Hall
- 👤 Sugg John William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:22
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/12; H01J41/18; H01J41/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN ELECTRONIC VACUUM PUMP COMPRISING A MODULE OF INDEPENDENT PUMP UNITS, EACH UNIT INCLUDING A CYLINDRICAL ANODE AND A CATHODE TRANSVERSE THERETO, A CASING ABOUT SAID MODULE, MAGNETIC MEANS ASSOCIATED WITH SAID MODULE WHEREIN A MAGNETIC FIELD IS APPLIED PARALLEL TO THE AXIS OF SAID CYLINDRICAL ANODES, AND AN EVAPORATOR UNIT WITHIN SAID CASING, SAID EVAPORATOR UNIT INCLUDING A SOURCE OF REACTIVE MATERIAL AND A HEATING ELEMENT ASSOCIATED THEREWITH, AND AN INLET TO SAID CASING.
Claim 2
Dependent Claim
75 words
AN ELECTRONIC VACUUM PUMP COMPRISING A MODULE OF INDEPENDENT PUMP UNITS, EACH UNIT INCLUDING A CYLINDRICAL ANODE AND A CATHODE TRANSVERSE THERETO, A CASING ABOUT SAID MODULE, MAGNETIC MEANS ASSOCIATED WITH SAID MODULE WHEREIN A MAGNETIC FIELD IS APPLIED PARALLEL TO THE AXIS OF SAID CYLINDRICAL ANODES, AND AN EVAPORATOR UNIT WITHIN SAID CASING, SAID EVAPORATOR UNIT INCLUDING A SOURCE OF REACTIVE MATERIAL AND A HEATING ELEMENT ASSOCIATED THEREWITH, AND AN INLET TO SAID CASING.
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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |