US3214625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic tube with self-supporting frame grid electrode system
Assignee: Siemens and Halske AG
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Filing: 1961-03-27
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Granted: 1965-10-26
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Expires: 1981-03-27
Abstract
No abstract record available.
Inventors
- 👤 Katz Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:36
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/02; H01J21/06; H01J21/065; H01J19/00; H01J19/28; H01J19/38; H01J19/42; H01J19/44; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0005; H01J2893/0012; H01J2893/0015; H01J2893/0016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A CERAMIC TUBE FOR VERY HIGH FREQUENCIES, ESPECIALLY A TETRODE, COMPRISING AN ELECTRODE SYSTEM SECURED UPON AND EXTENDING IN SELF-SUPPORTING SYSTEM FROM ONE SIDE OF A CERAMIC PLATE, AT LEAST ONE GRID ELECTRODE OF SAID ELECTRODE SYSTEM BEING CONSTRUCTED AS A FRAME GRID WITH TENSIONED WIRES, METAL SLEEVES SECURED WITHIN BORES FORMED IN SAID CERAMIC PLATE, CERTAIN OF SAID SLEEVES PROJECTING INTO THE ASSOCIATED BORES ONLY FOR PART OF THE LENGTH THEREOF, WITH THE SLEEVES OF ADJACENT ELECTRODES HAVING PORTIONS DISPOSED AT OPPOSITE SIDES OF THE CERAMIC PLATE AND SOLDERED IN PLACE ALTERNATELY AT OPPOSITE ENDS OF THE CORRESPONDING BORES TO PRODUCE ANNULAR SPACES EXTENDING ALTERNATELY IN OPPOSITE DIRECTIONS TO THE SIDES OF THE CERAMIC PLATE, AND SUPPORTING MEMBERS FOR THE INDIVIDUAL ELECTRODES EXTENDING INTO THE RESPECTIVE METAL SLEVES AND SECURED THERETO SOLELY IN THE LOWER PORTIONS THEREOF.
Claim 2
Dependent Claim
138 words
A CERAMIC TUBE FOR VERY HIGH FREQUENCIES, ESPECIALLY A TETRODE, COMPRISING AN ELECTRODE SYSTEM SECURED UPON AND EXTENDING IN SELF-SUPPORTING SYSTEM FROM ONE SIDE OF A CERAMIC PLATE, AT LEAST ONE GRID ELECTRODE OF SAID ELECTRODE SYSTEM BEING CONSTRUCTED AS A FRAME GRID WITH TENSIONED WIRES, METAL SLEEVES SECURED WITHIN BORES FORMED IN SAID CERAMIC PLATE, CERTAIN OF SAID SLEEVES PROJECTING INTO THE ASSOCIATED BORES ONLY FOR PART OF THE LENGTH THEREOF, WITH THE SLEEVES OF ADJACENT ELECTRODES HAVING PORTIONS DISPOSED AT OPPOSITE SIDES OF THE CERAMIC PLATE AND SOLDERED IN PLACE ALTERNATELY AT OPPOSITE ENDS OF THE CORRESPONDING BORES TO PRODUCE ANNULAR SPACES EXTENDING ALTERNATELY IN OPPOSITE DIRECTIONS TO THE SIDES OF THE CERAMIC PLATE, AND SUPPORTING MEMBERS FOR THE INDIVIDUAL ELECTRODES EXTENDING INTO THE RESPECTIVE METAL SLEVES AND SECURED THERETO SOLELY IN THE LOWER PORTIONS THEREOF.
References Cited (Backward Citations)
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US2695442A
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US2722624A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |