Patent US3579009A successfully refreshed from Google Patents.
US3579009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun assembly including two part threaded electrode
Assignee: Panasonic Holdings Corp
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Filing: 1969-07-03
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Granted: 1971-05-18
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Expires: 1989-07-03
Abstract
Abstract An electron gun assembly for a cathode-ray tube having a removable cathode-grid assembly which has a plurality of stem leads connected with the respective electrodes and led out to the outside at the stem and which is supported by multihold glass bars, and an anode and focusing electrode assembly which has a plurality of side leads connected with the respective electrodes and led to the outside from the side and which is supported by multihold glass bars.
Inventors
- 👤 Tsutomu Nishino
- 👤 Kokiti Kinoshita
- 👤 Haruo Maeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:24
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/82; H01J29/48; H01J29/487
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
An electron gun assembly for a cathode-ray tube having a glass envelope comprising: a removable cathode-grid assembly which has a plurality of multihold glass bars, a cathode, a grid supported by the multihold glass bars, an electrode supported by the multihold glass bars and formed at one end with a thread and a plurality of stem leads connected with the cathode and the respective electrodes and led out to the outside of the tube at the stem, and an anode and focusing electrode assembly which has a plurality of multihold glass bars, an electrode supported by the multihold glass bars and formed at one end with a thread for engaging with the thread of said removable cathode-grid assembly, an anode supported by the multihold glass bars, a focusing electrode supported by the multihold glass bars and a plurality of leads connected with the respective electrodes and sealed and led radially to the outside of the tube from the side of the envelope.
Claim 2
Dependent Claim
162 words
An electron gun assembly for a cathode-ray tube having a glass envelope comprising: a removable cathode-grid assembly which has a plurality of multihold glass bars, a cathode, a grid supported by the multihold glass bars, an electrode supported by the multihold glass bars and formed at one end with a thread and a plurality of stem leads connected with the cathode and the respective electrodes and led out to the outside of the tube at the stem, and an anode and focusing electrode assembly which has a plurality of multihold glass bars, an electrode supported by the multihold glass bars and formed at one end with a thread for engaging with the thread of said removable cathode-grid assembly, an anode supported by the multihold glass bars, a focusing electrode supported by the multihold glass bars and a plurality of leads connected with the respective electrodes and sealed and led radially to the outside of the tube from the side of the envelope.
References Cited (Backward Citations)
US2211325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |