US3471743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit system for enlarging a selected part of the image on the screen of a cathode ray tube
Assignee: Saab Bofors AB
•
Filing: 1967-10-23
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Granted: 1969-10-07
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Expires: 1987-10-23
Abstract
No abstract record available.
Inventors
- 👤 Tore Bertil Reinhold Olsson
- 👤 Hans Gunnar Berggren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:05
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/22; G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/24; H04N5/00; H04N5/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2386728A
Cited
US3011164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |