Zinc-aluminum alloy
Abstract
Abstract A zinc-aluminum alloy consisting of 18 to 24% by weight (preferably 21% by weight) aluminum, the balance zinc and 0.1 to 1.5% by weight nickel (preferably 0.3 to 1.0% by weight). The nickel component represents a further metal for which can be substituted, to an amount of about 50% by weight, titanium in an amount of 0.05 to 0.5% by weight of the alloy, copper up to 0.5% by weight of the alloy, iron in an amount of up to 0.75% by weight of the alloy, and silicon in an amount of up to 0.75% by weight of the alloy. The lead, cadmium and tin content should be no greater than 0.05% by weight of the alloy and the magnesium content is preferably less than 0.0005% by weight of the alloy.
Inventors
- 👤 E Pelzel
Bibliographic Details
Claims Analysis
Total Claims: 3References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |