US3288971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact element and subassembly
Assignee: Texas Instruments Inc
•
Filing: 1965-06-16
•
Granted: 1966-11-29
•
Expires: 1985-06-16
Abstract
No abstract record available.
Inventors
- 👤 William V Polleys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:16
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/023; H01H1/0231; B; B23; B23K; B23K35/00; B23K35/001; B23K35/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN ELECTRICAL CONTACT ELEMENT COMPRISING: (A) A FIRST LAYER FORMED OF A FIRST ALLOY OF A REFRACTORY MATERIAL AND SILVER, THE REFRACTORY MATERIAL CONSTITUTING A PREDETERMINED PERCENT BY WEIGHT OF THE FIRST ALLOY; (B) A SECOND LAYER, METALLURGICALLY BONDED ON ONE SIDE TO THE FIRST LAYER, FORMED OF A SECOND ALLOY COMPRISING THE REFRACTORY MATERIAL AND SILVER, THE REFRACTORY MATERIAL CONSTITUTING A SECOND PREDETERMINED PERCENT BY WEIGHT OF THE SECOND ALLOY WHICH SECOND PREDETERMINED PERCENT IS LESS THAN THE FIRST PREDETERMINED PERCENT; AND (C) A THIRD LAYER, METALLURGICALLY BONDED TO THE OTHER SIDE OF THE SECOND LAYER, AND FORMED OF SUBSTANTIALLY PURE SILVER.
Claim 2
Dependent Claim
103 words
AN ELECTRICAL CONTACT ELEMENT COMPRISING: (A) A FIRST LAYER FORMED OF A FIRST ALLOY OF A REFRACTORY MATERIAL AND SILVER, THE REFRACTORY MATERIAL CONSTITUTING A PREDETERMINED PERCENT BY WEIGHT OF THE FIRST ALLOY; (B) A SECOND LAYER, METALLURGICALLY BONDED ON ONE SIDE TO THE FIRST LAYER, FORMED OF A SECOND ALLOY COMPRISING THE REFRACTORY MATERIAL AND SILVER, THE REFRACTORY MATERIAL CONSTITUTING A SECOND PREDETERMINED PERCENT BY WEIGHT OF THE SECOND ALLOY WHICH SECOND PREDETERMINED PERCENT IS LESS THAN THE FIRST PREDETERMINED PERCENT; AND (C) A THIRD LAYER, METALLURGICALLY BONDED TO THE OTHER SIDE OF THE SECOND LAYER, AND FORMED OF SUBSTANTIALLY PURE SILVER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |