Patent US3152280A successfully refreshed from Google Patents.
US3152280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omegatron electrode assembly
Assignee: Imperial Chemical Industries Ltd
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Filing: 1961-05-29
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Granted: 1964-10-06
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Martin S Bloom
- 👤 Hirzel Johannes Jakob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:42
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/26; H01J49/34; H01J49/36; H01J49/38; H01J19/00; H01J19/42; H01J41/00; H01J41/02; H01J41/06; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN ELECTRODE ASSEMBLY FOR AN ELECTRONIC VACUUM TUBE DEVICE, COMPRISING A METAL BLOCK SERVING AS A RADIO FREQUENCY ELECTRODE, A SECOND RADIO FREQUENCY ELECTRODE, AN OPEN ENDED BOX STRUCTURE WHICH WITH THE RADIO FREQUENCY ELECTRODES ENCLOSES A RECTANGULAR IONIZATION AND MASS SELECTION ZONE, THE SAID SECOND RADIO FREQUENCY ELECTRODE AND BOX STRUCTURE BEING SECURED TO A BRACKET BY MEANS OF INSULATING WASHERS, AND, SECURED TO THE BLOCK AND INSULATED THEREFROM BY MEANS OF INSULATING WASHERS, A FILAMENT, A FILAMENT BACK PLATE AND AN ELECTRON COLLECTOR, AND MEANS FOR REMOVABLY AND RIGIDLY SECURING THE ELECTRODES TO THE BLOCK IN ACCURATELY DETERMINED POSITIONS WITH RESPECT TO EACH OTHER AND WITH RESPECT TO THE BLOCK, AND MEANS FOR CONNECTING LEADS TO THE ELECTRODES.
Claim 2
Dependent Claim
120 words
AN ELECTRODE ASSEMBLY FOR AN ELECTRONIC VACUUM TUBE DEVICE, COMPRISING A METAL BLOCK SERVING AS A RADIO FREQUENCY ELECTRODE, A SECOND RADIO FREQUENCY ELECTRODE, AN OPEN ENDED BOX STRUCTURE WHICH WITH THE RADIO FREQUENCY ELECTRODES ENCLOSES A RECTANGULAR IONIZATION AND MASS SELECTION ZONE, THE SAID SECOND RADIO FREQUENCY ELECTRODE AND BOX STRUCTURE BEING SECURED TO A BRACKET BY MEANS OF INSULATING WASHERS, AND, SECURED TO THE BLOCK AND INSULATED THEREFROM BY MEANS OF INSULATING WASHERS, A FILAMENT, A FILAMENT BACK PLATE AND AN ELECTRON COLLECTOR, AND MEANS FOR REMOVABLY AND RIGIDLY SECURING THE ELECTRODES TO THE BLOCK IN ACCURATELY DETERMINED POSITIONS WITH RESPECT TO EACH OTHER AND WITH RESPECT TO THE BLOCK, AND MEANS FOR CONNECTING LEADS TO THE ELECTRODES.
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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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |