US3445811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Error system for logic circuits
Assignee: Fujitsu Ltd
•
Filing: 1965-08-09
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Granted: 1969-05-20
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Masao Hashimoto
- 👤 Akira Yamaguchi
- 👤 Hironobu Nishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:44
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/10; G06F11/0703; G06F11/0751; G06F11/0793; G06F11/22; G06F11/26; G06F11/273; G06F11/277; H; H03; H03K; H03K19/00; H03K19/003; H03K19/00392
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3170071A
Cited
US3235842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |