Patent US3347995A successfully refreshed from Google Patents.
US3347995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Make before break ball type armature reed relay switching network
Assignee: International Standard Electric Corp
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Filing: 1964-07-22
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Granted: 1967-10-17
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 Schluter Heinz
- 👤 Schonemeyer Hilmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:58
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0008; H04Q3/0012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A SWITCHING NETWORK COMPRISING A PLURALITY OF CASCADED SWITCHING STAGES JOINED BY INTERSTAGE WIRINGS INCLUDING CONTROL WIRES AND SPEECH WIRES, REED SWITCHES AT EACH CROSS-POINT IN SAID NETWORK FOR SWITCHING SAID WIRES, MARKER MEANS IN EACH STAGE FOR PROVIDING MARKING SIGNALS TO SELECT THE DESIRED REED RELAY CROSS-POINT UNDER THE CONTROL OF SIGNALS RECEIVED OVER SAID SPEECH WIRES, AND MEANS COMPRISING BALL ARMATURE CONTACTS IN THE REED SWITCHES FORO SELECTIVELY CONNECTING INDIVIDUAL ONES OF SAID SPEECH WIRES EITHER TO SAID MARKER MEANS IN THE SWITCHING STAGE OR THROUGH SAID NETWORK THEREBY RESUSING SAID WIRES TO PERFORM DIFFERENT JUNCTIONS AT DIFFERENT TIMES DURING THE ESTABLISHMENT AND CONTROL OF A SWITCH PATH.
Claim 2
Dependent Claim
110 words
A SWITCHING NETWORK COMPRISING A PLURALITY OF CASCADED SWITCHING STAGES JOINED BY INTERSTAGE WIRINGS INCLUDING CONTROL WIRES AND SPEECH WIRES, REED SWITCHES AT EACH CROSS-POINT IN SAID NETWORK FOR SWITCHING SAID WIRES, MARKER MEANS IN EACH STAGE FOR PROVIDING MARKING SIGNALS TO SELECT THE DESIRED REED RELAY CROSS-POINT UNDER THE CONTROL OF SIGNALS RECEIVED OVER SAID SPEECH WIRES, AND MEANS COMPRISING BALL ARMATURE CONTACTS IN THE REED SWITCHES FORO SELECTIVELY CONNECTING INDIVIDUAL ONES OF SAID SPEECH WIRES EITHER TO SAID MARKER MEANS IN THE SWITCHING STAGE OR THROUGH SAID NETWORK THEREBY RESUSING SAID WIRES TO PERFORM DIFFERENT JUNCTIONS AT DIFFERENT TIMES DURING THE ESTABLISHMENT AND CONTROL OF A SWITCH PATH.
References Cited (Backward Citations)
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Cited
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US3188423A
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US3110772A
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US3261942A
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US3301964A
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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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |