US3476974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital controlled elliptical display
Assignee: Stromberg Datagraphix Inc
•
Filing: 1968-01-22
•
Granted: 1969-11-04
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Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 Rodger Elmo Turnage Jr
- 👤 Jerald T Stebbins
- 👤 Lawrence R Crump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:54
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/22; G06J; G06J1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3205349A
Cited
US3148451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |