US2984765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric controlled informationbearing device
Assignee: Digital Technology Inc
•
Filing: 1956-11-28
•
Granted: 1961-05-16
•
Expires: 1976-11-28
Abstract
No abstract record available.
Inventors
- 👤 Douglas C Engelbart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:13
CPC Classifications
H; H01; H01J; H01J65/00; H01J65/04; H01J65/042; H01J65/046; G; G09; G09F; G09F9/00; G09F9/30; G09F9/313; G09G; G09G3/00; G09G3/04; G09G3/06; G09G3/10; G09G3/20; G09G3/22; G09G3/28; G09G3/282; G09G3/285; G09G3/288; G09G3/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2049763A
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US2558019A
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US2670402A
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US2749480A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |