Patent US3274350A successfully refreshed from Google Patents.
US3274350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frictionless contact construction for electrical devices
Assignee: ACTON LAB Inc
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Filing: 1964-03-18
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Granted: 1966-09-20
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Expires: 1984-03-18
Abstract
No abstract record available.
Inventors
- 👤 Eugene H Mongeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:19
CPC Classifications
H; H01; H01C; H01C10/00; H01H; H01H19/00; H01H19/54; H01H19/60; H01H19/63; H01R; H01R39/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
A SWITCH COMPRISING A STIFF SHEET OF INSULATING MATERIAL HAVING ON ONE SURFACE THEREOF A CONDUCTIVE ELEMENT, A DIAPHRAGM OF LAMINATED CONSTRUCTION POSITIONED PARALLEL TO AND SPACED FROM SAID CONDUCTIVE ELEMENT, SAID SHEET AND THE EDGES OF SAID DIAPHRAGM SEALED TOGETHER, SAID DIAPHRAGM COMPRISING AN INNER LAYER OF GOLD AND AN OUTER LAYER OF A HARD HIGH FATIGUE RESISTANT SPRING ALLOY ESSENTIALLY COMPRISING COBALT, NICKEL, CHROMIUM AND IRON, AND A BAND OF A FLEXIBLE INSULATING MATERIAL CEMENTED TO THE OUTER SURFACE OF SAID ALLOY LAYER.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |