US3157747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic selecting switch
Assignee: AT&T Inc
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Filing: 1960-05-10
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Granted: 1964-11-17
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Expires: 1980-05-10
Abstract
No abstract record available.
Inventors
- 👤 Feiner Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:12
CPC Classifications
H; H01; H01H; H01H67/00; H01H67/22; H01H67/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN ARRANGEMENT FOR SIMULTANEOUSLY CLOSING A FIRST DRY-REED SWITCH AND OPENING A SECOND DRY-REED SWITCH COMPRISING IN COMBINATION WITH SAID SWITCHES A FIRST LOW MAGNETIC RELUCTANCE MEMBER ASSOCIATED WITH FIRST TERMINALS OF EACH OF SAID SWITCHES, A SECOND LOW MAGNETIC RELUCTANCE MEMBER ASSOCIATED WITH SECOND TERMINALS OF EACH OF SAID SWITCHES, PERMANENT MAGNETIC MEANS ASSOCIATED TO PRODUCE A FLUX IN A LIKE SENSE IN EACH OF SAID SWITCHES SUFFICIENT TO MAINTAIN SAID SWITCHES CLOSED BUT INSUFFICIENT TO INITIATE THE CLOSING OF SAID SWITCHES, AND MEANS FOR PRODUCING A FLUX IN SAID FIRST LOW MAGNETIC RELUCTANCE MEMBER SUFFICIENT TO INITIATE THE CLOSING OF SAID SWITCHES.
Claim 2
Dependent Claim
104 words
AN ARRANGEMENT FOR SIMULTANEOUSLY CLOSING A FIRST DRY-REED SWITCH AND OPENING A SECOND DRY-REED SWITCH COMPRISING IN COMBINATION WITH SAID SWITCHES A FIRST LOW MAGNETIC RELUCTANCE MEMBER ASSOCIATED WITH FIRST TERMINALS OF EACH OF SAID SWITCHES, A SECOND LOW MAGNETIC RELUCTANCE MEMBER ASSOCIATED WITH SECOND TERMINALS OF EACH OF SAID SWITCHES, PERMANENT MAGNETIC MEANS ASSOCIATED TO PRODUCE A FLUX IN A LIKE SENSE IN EACH OF SAID SWITCHES SUFFICIENT TO MAINTAIN SAID SWITCHES CLOSED BUT INSUFFICIENT TO INITIATE THE CLOSING OF SAID SWITCHES, AND MEANS FOR PRODUCING A FLUX IN SAID FIRST LOW MAGNETIC RELUCTANCE MEMBER SUFFICIENT TO INITIATE THE CLOSING OF SAID SWITCHES.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |