US3622285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite wire or the like
Assignee: Leach and Garner Co
•
Filing: 1969-12-08
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Granted: 1971-11-23
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Expires: 1989-12-08
Abstract
Abstract An elongated article usually in the form of a wire having a core of beryllium copper which is completely surrounded in cross section or clad by an alloy containing a plurality of metals with gold having the greatest percentage and particularly adapted for electrical purposes. In some cases there may be a barrier between the core and the outer cladding to prevent migration between the cladding and the core.
Inventors
- 👤 Charles E Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:11
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/018; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12889; Y10T428/12903; Y10T428/1291
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
25 words
A clad metal as in claim 1 wherein the core contains beryllium 1.80- 2.05 nickel or cobalt or 0.20-0.60 some of each balance to 100percent
Claim 2
Dependent Claim
18 words
A clad metal as in claim 1 wherein the cladding material is gold-56.25 palladium-10.50 silver-5.25 copper-21. nickel-5.25 zinc-1.75
Claim 3
Dependent Claim
32 words
A clad metal as in claim 1 wherein there is a barrier metal between the core and cladding, the barrier material having nickel in a percentage by weight of over 99 percent.
Claim 4
Dependent Claim
15 words
A clad metal as in claim 1 wherein the barrier metal is 99.5 percent nicKel.
References Cited (Backward Citations)
US2608753A
Cited
US3302280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |