Patent US3177409A successfully refreshed from Google Patents.
US3177409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for the selection of one of a number of individual devices
Assignee: US Philips Corp
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Filing: 1960-04-06
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Granted: 1965-04-06
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Expires: 1980-04-06
Abstract
No abstract record available.
Inventors
- 👤 Kroes Jan Louis De
- 👤 Nicolai Willem Hendri Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:36
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/50; H04M3/51; H04M3/523; H01; H01H; H01H47/00; H01H47/001; H04Q; H04Q3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A LOCK-OUT CIRCUIT FOR THE SELECTION OF A PLURALITY OF INDIVIDUAL DEVICES EACH HAVING AN INDICATING TERMINAL AND OPERATING CONTACTS, SAID LOCK-OUT CIRCUIT COMPRISING A PLURALITY OF BISTABLE POLAR RELAY MEANS EACH HAVING A FIRST AND SECOND WINDING, AND CHANGE-OVER CONTACT MEANS WITH A REST CONTACT MEANS RESPONSIVE TO ENERGIZATION OF ONLY SAID SECOND WINDINGS AND WORK CONTACT MEANS RESPONSIVE TO ENERGIZATION OF ONLY SAID FIRST WINDINGS, LOCK-OUT RELAY MEANS HAVING LOCK CONTACT MEANS, MEANS ENERGIZING SAID LOCK-OUT RELAY MEANS COMPRISING A SERIES CIRCUIT OF SAID REST CONTACT MEANS, MEANS SIMULTANEOUSLY ENERGIZING SAID SECOND WINDINGS COMPRISING SAID LOCK CONTACT MEANS, MEANS FOR ENERGIZING SAID FIRST WINDINGS COMPRISING MEANS
Claim 2
Dependent Claim
108 words
A LOCK-OUT CIRCUIT FOR THE SELECTION OF A PLURALITY OF INDIVIDUAL DEVICES EACH HAVING AN INDICATING TERMINAL AND OPERATING CONTACTS, SAID LOCK-OUT CIRCUIT COMPRISING A PLURALITY OF BISTABLE POLAR RELAY MEANS EACH HAVING A FIRST AND SECOND WINDING, AND CHANGE-OVER CONTACT MEANS WITH A REST CONTACT MEANS RESPONSIVE TO ENERGIZATION OF ONLY SAID SECOND WINDINGS AND WORK CONTACT MEANS RESPONSIVE TO ENERGIZATION OF ONLY SAID FIRST WINDINGS, LOCK-OUT RELAY MEANS HAVING LOCK CONTACT MEANS, MEANS ENERGIZING SAID LOCK-OUT RELAY MEANS COMPRISING A SERIES CIRCUIT OF SAID REST CONTACT MEANS, MEANS SIMULTANEOUSLY ENERGIZING SAID SECOND WINDINGS COMPRISING SAID LOCK CONTACT MEANS, MEANS FOR ENERGIZING SAID FIRST WINDINGS COMPRISING MEANS
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |