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Patent US3226569A successfully refreshed from Google Patents.
US3226569A
Expired / Lapsed
US
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Failure detection circuits for redundant systems
Assignee: Lockheed Martin Corp
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Filing: 1962-07-30
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Granted: 1965-12-28
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Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Dwight C James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:01
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/003; H03K19/00392; H03K19/20; H03K19/23
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
A DISSENTING VOTE INDICATOR FOR USE IN CONJUNCTION WITH A MAJORITY VOTED CIRCUIT HAVING A PLURALITY OF REDUNDANT INPUT SIGNALS AND AT LEAST FIRST AND SECOND VOTED OUTPUT SIGNALS COMPRISING: FIRST CIRCUIT MEANS CONSTRUCTED AND ARRANGED FOR PRODUCING A FIRST SIGNAL IN RESPONSE TO THE PRESENCE OF SAID FIRST VOTED OUTPUT SIGNAL AND THE ABSENCE OF SAID SECOND VOTED OUTPUT SIGNAL; SECOND CIRCUIT MEANS CONSTRUCTED AND ARRANGED FOR PRODUCING A SECOND SIGNAL IN RESPONSE TO THE ABSENCE OF SAID FIRST VOTED SIGNAL AND THE PRESENCE OF SAID SECOND VOTED OUTPUT SIGNAL; AND THIRD
References Cited (Backward Citations)
US2693907A
Cited
US2942193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |