US3787202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature chromium-nickel alloy
Assignee: Cyclops Corp
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Filing: 1970-11-18
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Granted: 1974-01-22
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Expires: 1990-11-18
Abstract
Abstract An alloy containing 45 to 55 percent chromium, 45 to 55 percent nickel, 0.003 to 0.4 percent cerium, up to 1.5 percent titanium, up to 1.5 percent zirconium, and up to 1.5 percent hafnium. The titanium, zirconium and hafnium may be present separately in amounts up to 1.5 percent or they may be present in combination in an amount up to 3.0 percent.
Inventors
- 👤 C Mueller
- 👤 G Ecer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:29
CPC Classifications
F; F28; F28F; F28F21/00; F28F21/08; F28F21/081; F28F21/087; C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/058; F28D; F28D21/00; F28D2021/0019; F28D2021/0059
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
32 words
A high temperature corrosion resistant alloy consisting essentially of 45 - 55 percent chromium, 45 - 55 percent nickel, 0.003 - 0.4 percent cerium and between 0.3 percent and 1.5 percent titanium.
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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |