US3343077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and apparatus for seriesparallel testing of electrical components
Assignee: AT&T Inc
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Filing: 1963-12-17
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Granted: 1967-09-19
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Expires: 1983-12-17
Abstract
No abstract record available.
Inventors
- 👤 Kenneth K Brader
- 👤 Howard D Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:12
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/327; G01R31/3277; G01R31/3278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THE METHOD OF SIMULTANEOUSLY TESTING A PLURALITY OF CONTACT SWITCHES HAVING RESPECTIVE OPERATING COILS, WHICH COMPRISES THE STEPS OF: ALTERNATELY PLACING SAID SWITCHES IN ELECTRICAL SERIES RELATIONSHIP WITH ONE ANOTHER AND IN ELECTRICAL PARALLEL RELATIONSHIP WITH ONE ANOTHER; SEQUENTIALLY ENERGIZING AND DE-ENERGIZING THE OPERATING COILS OF SAID SWITCHES WHEN SAID SWITCHES ARE CONNECTED IN SERIES WITH ONE ANOTHER TO SEQUENTIALLY CLOSED AND OPEN THE CONTACTS THEREOF; PASSING A PREDETERMINED TEST CURRENT THROUGH THE CONTACTS OF SAID SWITCHES WHEN THE OPERATING COILS THEREOF ARE ENERGIZED;
Claim 2
Independent Claim
84 words
THE METHOD OF SIMULTANEOUSLY TESTING A PLURALITY OF CONTACT SWITCHES HAVING RESPECTIVE OPERATING COILS, WHICH COMPRISES THE STEPS OF: ALTERNATELY PLACING SAID SWITCHES IN ELECTRICAL SERIES RELATIONSHIP WITH ONE ANOTHER AND IN ELECTRICAL PARALLEL RELATIONSHIP WITH ONE ANOTHER; SEQUENTIALLY ENERGIZING AND DE-ENERGIZING THE OPERATING COILS OF SAID SWITCHES WHEN SAID SWITCHES ARE CONNECTED IN SERIES WITH ONE ANOTHER TO SEQUENTIALLY CLOSED AND OPEN THE CONTACTS THEREOF; PASSING A PREDETERMINED TEST CURRENT THROUGH THE CONTACTS OF SAID SWITCHES WHEN THE OPERATING COILS THEREOF ARE ENERGIZED;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |