US 6174493
Porous Beryllium
Assignee
Filed
Dec 6, 1967
Granted
Jan 16, 2001
Location
Knoxville TN
35 USC §181 Secrecy Order
Imposed
Feb 22, 1989
Rescinded
Mar 10, 2000
Duration
11 years
Inventor
- 1Joseph J. Asbury
Record Details
- Patent number
- US 6174493
- Application
- 04690701
- 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