US3512037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dot-scan tangent-fix tracking technique for graphic display systems
Assignee: Unisys Corp
•
Filing: 1969-03-03
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Granted: 1970-05-12
•
Expires: 1989-03-03
Abstract
No abstract record available.
Inventors
- 👤 Edward R Eckert
- 👤 Frederick V Rehhausser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:09
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/038; G06F3/0386
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3342935A
Cited
US3394366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |