US 6225963
CLOVERLEAF SPIRAL ANTENNA AND ARRAY
Assignee
MCDONNELL DOUGLAS CORPORATION A CORP OF MD
Filed
Dec 11, 1981
Granted
May 1, 2001
Location
FERGUSON MO US
35 USC §181 Secrecy Order
Imposed
Jun 23, 1982
Rescinded
Mar 15, 2000
Duration
17 years, 9 months
Inventor
- 1FREDERICK W. VORTMEIER
Record Details
- Patent number
- US 6225963
- Application
- 06329725
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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Back to patent indexSource: USPTO 35 USC §181 secrecy order records