Patent US3142776A successfully refreshed from Google Patents.
US3142776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitized gun mount and envelope
Assignee: GTE Sylvania Inc
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Filing: 1961-05-01
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Granted: 1964-07-28
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Frank C Wells
- 👤 Stanley F Swiadek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:13
CPC Classifications
H; H01; H01J; H01J3/00; H01J3/02; H01J3/027; H01J23/00; H01J23/02; H01J23/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
IN AN ELECTRON DISCHARGE DEVICE, AN ELECTRON GUN AND AN ENVELOPE CONTAINING SAID GUN, SAID GUN HAVING A MEANS FOR PRODUCING ELECTRONS, A PLURALITY OF ELECTRODES FOR FOCUSING AND ACCELERATING SAID BEAM, AND A PLURALITY OF INSULATING SPACERS STACKED IN ENGAGEMENT WITH SAID ELECTRODES; SAID ENVELOPE COMPRISING A PLURALITY OF INSULATING MEMBERS COUPLED TOGETHER ABOUT SAID SPACERS AND SAID ELECTRODES, AND CONTACT MEANS INTEGRAL WITH SAID ENVELOPE COMPRISING A PLURALITY OF CIRCUMFERENTIALLY SPACED METAL BANDS, EACH OF SAID BANDS BEING ELECTRICALLY CONNECTED TO ONE OF SAID ELECTRODES.
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |