Patent US3790371A successfully refreshed from Google Patents.
US3790371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion-resistant alloy
Assignee: USM Corp
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Filing: 1971-12-16
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Granted: 1974-02-05
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Expires: 1991-12-16
Abstract
Abstract Corrosion-resisting alloy useful for molding surface formed of the alloy for molding of resin, the alloy including nickel, copper andberyllium in certain ranges of proportions.
Inventors
- 👤 D Karlyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:49
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/002; C22C9/00; C22C9/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
37 words
A ternary alloy as defined in claim 1 comprising from 55 to 65 parts by weight of nickel, from 35 to 45 parts by weight of copper and from 1.5 to 2.5 parts by weight of beryllium.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |