US3418519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yoke driving circuit for cathode ray tube display
Assignee: International Business Machines Corp
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Filing: 1965-01-14
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Granted: 1968-12-24
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Expires: 1985-01-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Herman A Ferrier
- 👤 Paul V Mcenroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:13
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/04; G09G1/06; G09G1/14; G09G1/18; H; H03; H03K; H03K6/00
Claims Analysis
Total Claims: 0
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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) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |