Patent US3272947A successfully refreshed from Google Patents.
US3272947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch contact arrangement
Assignee: Cooper Industries LLC
•
Filing: 1964-05-11
•
Granted: 1966-09-13
•
Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Herman H Kobryner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:56
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/10; H01H1/00; H01H1/12; H01H1/36; H01H1/42; H01R; H01R13/00; H01R13/46; H01R13/53; H01H9/30; H01H9/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
A PULL-OUT SWITCH COMPRISING ENGAGEABLE MALE AND FEMALE CONTACTS; SAID MALE CONTACT COMPRISING PHYSICALLY AND ELECTRICALLY PARALLEL PRIMARY AND AUXILIARY CONTACT ELEMENTS, SAID AUXILIARY CONTACT ELEMENT BEING FORMED OF RESILIENT MATERIAL AND BEING DIMENSIONED TO BE OF LESSER CROSS-SECTION AND OF GREATER RELATIVE LENGTH THAN SAID PRIMARY CONTACT FOR MAKING FIRST WITH SAID FEMALE CONTACT AND BREAKING LAST, ABSORBING ANY ARC IN A GREATER RESISTANCE PATH; A PULLER AND A TUB; MEANS FOR MOUNTING THE MALE CONTACT IN SAID PULLER; MEANS FOR MOUNTING THE FEMALE CONTACT IN SAID TUB AT A LOCATION TO PERMIT ENGAGEMENT OF SAID MALE AND FEMALE CONTACTS UPON THE SEATING OF SAID PULLER IN SAID TUB; SAID MALE AUXILIARY CONTACT ELEMENT INCLUDING A PROJECTING PORTION AT THE END THEREOF, AND A NON-CONDUCTING LIP IN SAID TUB ADJACENT THE END OF
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |