Patent US3278781A successfully refreshed from Google Patents.
US3278781A
Expired / Lapsed
US
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Storage tube flood gun with segmented anode
Assignee: Fairchild Semiconductor Corp
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Filing: 1963-08-21
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Granted: 1966-10-11
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Expires: 1983-08-21
Abstract
No abstract record available.
Inventors
- 👤 Burns Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:07
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
A FLOOD SYSTEM FOR A CATHODE RAY STORAGE TUBE INCLUDING A RING-TYPE FLOOD GUN DISPOSED SUBSTANTIALLY CONCENTRIC TO THE MAJOR AXIS OF THE TUBE, SAID FLOOD GUN HAVING AT LEAST AN ANODE AND A CATHODE, SAID ANODE HAVING A PLURALITY OF ELECTRICALLY ISOLATED PORTIONS AND MEANS FOR APPLYING DESIRED POTENTIALS TO EACH OF SAID PORTIONS WHEREBY AN ELECTRON FLOOD EMANATING THEREFROM MAY BE STEERED.
References Cited (Backward Citations)
US2165028A
Cited
US2239749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |