US2832871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical circuit connection device
Assignee: Ramo Wooldridge Corp
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Filing: 1957-04-11
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Granted: 1958-04-29
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Expires: 1977-04-11
Abstract
No abstract record available.
Inventors
- 👤 Charles H Bachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/74; H01H37/76; G; G08; G08B; G08B17/00; G08B17/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
A SINGLE OPERATION ELECTRICAL SWITCH INCLUDING THE COMBINATION OF AN AIRTIGHT ENCLOSURE, AT LEAST TWO ELECTRODES EXTENDING WITHIN THE ENCLOSURE, A QUANTITY OF A COMPOSITION INCLUDING THE CARBONYL CHEMICAL RADICAL AND A METALLIC ELEMENT CHEMICALLY COMBINED WITH THE CARBONYL RADICAL SO THAT THE METALLIC ELEMENT IS HELD IN A NONCONDUCTIVE STATE OVER A GIVEN RANGE OF TEMPERATURES, SAID MATERIAL BEING ADAPTED TO CHEMICALLY SEPARATE AT A PREDETERMINED TEMPERATURE AT WHICH THE METALLIC ELEMENT IS DEPOSITIONED AS AN ELECTRICAL CONNECTION BETWEEN THE ELECTRODES
References Cited (Backward Citations)
US2725821A
Cited
US2786918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |