US2851381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simultaneous infiltrating and obtaining a brazable surface
Assignee: Gibson Electric Co
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Filing: 1955-04-05
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Granted: 1958-09-09
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Expires: 1975-04-05
Abstract
No abstract record available.
Inventors
- 👤 Norman S Hoyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:01
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/023; H01H1/0233; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; H01H1/0231; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN THE MANUFACTURE OF AN ELECTRICAL CONTACT COMPRISING A PRESSED AND SINTERED REFACTORY COMPACT FROM THE GROUP CONSISTING OF TUNGEN, MOLYBDENUM AND CARBIDES THEREOF, AND INFILTRATED WITH FROM 20 TO 60 PERCENT, BY WEIGHT, OF A LOWER MELTING POINT CONDUCTIVE METAL FROM THE GROUP CONSISTING OF COPPER AND SILVER, THE IMPROVEMENT WHICH COMPRISES APPYING TO ONLY THE INFILTRATING SURFACE OF THE PRESSED AND SINTERED REFRACTORY COMPACT 0.2 TO 2 PERCENT BY WEIGHT OF A FINELY DIVIDED METALLIC WETTING AGENT FROM THE GROUP CONSISING OF IRON, COBALT AND NICKEL, AND SUBSEQUENTLY IMPREGNATING THE SAID COMPACT THROUGH THE SAID COATED INFILTRATING SURFACE WITH THE SAID LOWER MELTING POINT CONDUCTIVE METAL, THEREBY CAUSING THE EXCESS INFILTRANT TO SPREAD EVENLY OVER THE SAID SURFACE.
Claim 2
Dependent Claim
120 words
IN THE MANUFACTURE OF AN ELECTRICAL CONTACT COMPRISING A PRESSED AND SINTERED REFACTORY COMPACT FROM THE GROUP CONSISTING OF TUNGEN, MOLYBDENUM AND CARBIDES THEREOF, AND INFILTRATED WITH FROM 20 TO 60 PERCENT, BY WEIGHT, OF A LOWER MELTING POINT CONDUCTIVE METAL FROM THE GROUP CONSISTING OF COPPER AND SILVER, THE IMPROVEMENT WHICH COMPRISES APPYING TO ONLY THE INFILTRATING SURFACE OF THE PRESSED AND SINTERED REFRACTORY COMPACT 0.2 TO 2 PERCENT BY WEIGHT OF A FINELY DIVIDED METALLIC WETTING AGENT FROM THE GROUP CONSISING OF IRON, COBALT AND NICKEL, AND SUBSEQUENTLY IMPREGNATING THE SAID COMPACT THROUGH THE SAID COATED INFILTRATING SURFACE WITH THE SAID LOWER MELTING POINT CONDUCTIVE METAL, THEREBY CAUSING THE EXCESS INFILTRANT TO SPREAD EVENLY OVER THE SAID SURFACE.
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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |