Patent US1679656A successfully refreshed from Google Patents.
Patent US3239133A successfully refreshed from Google Patents.
US3239133A
Expired / Lapsed
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Pump
Assignee: E LEYBOLD-HOLDING AG
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Filing: 1962-04-02
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Granted: 1966-03-08
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Noller Hans-Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:43
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 ION GETTER PUMP OF THE TYPE WHEREIN A COLD CATHODE DISCHARGE BETWEEN SEPARATED ELECTRODES PROVIDES SPUTTERING OF THE ELECTRODE SURFACES, AND THE SPUTTERED GETTER MATERIAL IS DEPOSITED ON A COLLECTING SURFACE, THE IMPROVEMENT COMPRISING: HIGH FREQUENCY GENERATOR MEANS CONNECTED TO SAID ELECTRODES AND WHEREIN SAID HIGH FREQUENCY GENERATOR MEANS AND SAID ELECTRODES ARE ADAPTED TO PROVIDE A HIGH FREQUENCY ELECTRIC FIELD WHICH MAINTAIN AN ELECTRIC GAS DISCHARGE BETWEEN THE ELECTRODES BY EXTENDING THE PATH OF PRODUCED ELECTRONS.
Claim 2
Dependent Claim
79 words
IN AN ION GETTER PUMP OF THE TYPE WHEREIN A COLD CATHODE DISCHARGE BETWEEN SEPARATED ELECTRODES PROVIDES SPUTTERING OF THE ELECTRODE SURFACES, AND THE SPUTTERED GETTER MATERIAL IS DEPOSITED ON A COLLECTING SURFACE, THE IMPROVEMENT COMPRISING: HIGH FREQUENCY GENERATOR MEANS CONNECTED TO SAID ELECTRODES AND WHEREIN SAID HIGH FREQUENCY GENERATOR MEANS AND SAID ELECTRODES ARE ADAPTED TO PROVIDE A HIGH FREQUENCY ELECTRIC FIELD WHICH MAINTAIN AN ELECTRIC GAS DISCHARGE BETWEEN THE ELECTRODES BY EXTENDING THE PATH OF PRODUCED ELECTRONS.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |