Patent US3249784A successfully refreshed from Google Patents.
US3249784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct-view signal-storage tube with image expansion means between storage grid and viewing screen
Assignee: Fairchild Semiconductor Corp
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Filing: 1962-11-14
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Granted: 1966-05-03
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Expires: 1982-11-14
Abstract
No abstract record available.
Inventors
- 👤 Burns Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:12
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A DIRECT-VIEW SIGNAL-STORAGE CATHODE-RAY TUBE COMPRISING: (A) AN ENVELOPE HAVING AN ENLARGED BULB PORTION AND A REDUCED NECK PORTION; (B) A LUMINESCENT SCREEN ON THE END OF SAID BULB PORTION; (C) A SIGNAL-STORAGE GRID HAVING AN AREA OF THE ORDER OF THE CROSS-SECTIONAL AREA OF SAID NECK PORTION; (D) A WRITING GUN FOR SCANNING SAID GRID WITH A HIGHVELOCITY ELECTRON BEAM;
Claim 2
Dependent Claim
61 words
A DIRECT-VIEW SIGNAL-STORAGE CATHODE-RAY TUBE COMPRISING: (A) AN ENVELOPE HAVING AN ENLARGED BULB PORTION AND A REDUCED NECK PORTION; (B) A LUMINESCENT SCREEN ON THE END OF SAID BULB PORTION; (C) A SIGNAL-STORAGE GRID HAVING AN AREA OF THE ORDER OF THE CROSS-SECTIONAL AREA OF SAID NECK PORTION; (D) A WRITING GUN FOR SCANNING SAID GRID WITH A HIGHVELOCITY ELECTRON BEAM;
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |