Patent US3404377A successfully refreshed from Google Patents.
US3404377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
General purpose digital computer
Assignee: Individual
•
Filing: 1965-10-01
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Granted: 1968-10-01
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Expires: 1985-10-01
Abstract
No abstract record available.
Inventors
- 👤 Stanley Ph Frankel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:18
CPC Classifications
G; G11; G11C; G11C21/00; G06; G06F; G06F15/00; G06F15/76; G06F15/78; G06F3/00; G06F3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2876352A
Cited
US2978680A
Cited
US3094609A
Cited
US3156815A
Cited
US3223981A
Cited
US3231867A
Cited
US3145369A
Cited
US3278907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |