US3266017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural electrical paths monitored by comparison of transients
Assignee: AT&T Inc
•
Filing: 1962-10-02
•
Granted: 1966-08-09
•
Expires: 1982-10-02
Abstract
No abstract record available.
Inventors
- 👤 Danielsen Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:26
CPC Classifications
H; H04; H04Q; H04Q3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
AN AUTOMATIC PATH VERIFIER COMPRISING: A PLURALITY OF SUBSTANTIALLY IDENTICAL ELECTRICAL PATHS; MEANS FOR SELECTIVELY COMPLETING SAID PATHS; MEANS FOR PRODUCING A TRANSIENT REFERENCE CURRENT; MEANS FOR COMPARING SAID REFERENCE CURRENT WITH THE TRANSIENT CURRENT INDUCED WHEN ANY OF SAID PATHS IS COMPLETED; AND MEANS FOR INDUCING A CORRECTIVE OUTPUT SIGNAL WHEN THE NUMBER OF COMPLETED PATHS IS ANY NUMBER DIFFERENT THAN ONE.
Claim 2
Dependent Claim
63 words
AN AUTOMATIC PATH VERIFIER COMPRISING: A PLURALITY OF SUBSTANTIALLY IDENTICAL ELECTRICAL PATHS; MEANS FOR SELECTIVELY COMPLETING SAID PATHS; MEANS FOR PRODUCING A TRANSIENT REFERENCE CURRENT; MEANS FOR COMPARING SAID REFERENCE CURRENT WITH THE TRANSIENT CURRENT INDUCED WHEN ANY OF SAID PATHS IS COMPLETED; AND MEANS FOR INDUCING A CORRECTIVE OUTPUT SIGNAL WHEN THE NUMBER OF COMPLETED PATHS IS ANY NUMBER DIFFERENT THAN ONE.
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |