US 4603029Tier 1 — UAP Program Assignee
ALUMINUM-LITHIUM ALLOY
Assignee
Boeing
Filed as: BOEING COMPANY, THE
Filed
Mar 13, 1985
Granted
Jul 29, 1986
Location
REDMOND WA US
Abstract
An aluminum-lithium alloy exhibiting good fracture toughness and relatively high strength has a nominal composition of 2.5 percent lithium, 0.6 percent magnesium, 1.8 percent copper, 0.12 percent zirconium with the balance being aluminum and trace elements.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Aug 5, 1985
Rescinded
Dec 26, 1985
Duration
4 months
Inventor
- 1WILLIAM E. QUIST
Record Details
- Patent number
- US 4603029
- Application
- 06711348
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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Back to patent indexSource: USPTO 35 USC §181 secrecy order records