Butternut Electronics Co.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5016021 12 and 17 meter adapter assembliesExpiredJan 16, 90May 14, 91[H01Q]
4833483 Vertical antennaExpiredJul 12, 88May 23, 89[H01Q]
4785308 AntennaExpiredJan 17, 86Nov 15, 88[H01Q]
D288564 AntennaExpiredJul 27, 84Mar 03, 87[]
4630060 Vertical antenna with decoupling sections for multiband operationExpiredOct 12, 83Dec 16, 86[H01Q]
D284936 Antenna element-boom clampExpiredMar 17, 83Aug 05, 86[]
4593289 Multi-band dipole antenna with matching stubsExpiredApr 18, 83Jun 03, 86[H01Q]
D277483 AntennaExpiredJul 09, 82Feb 05, 85[]
4259672 Multi-band vertical antennaExpiredSep 18, 79Mar 31, 81[H01Q]
4222053 Multi-band vertical antennaExpiredNov 03, 78Sep 09, 80[H01Q]
4209790 Vertical antenna with stub cancellation meansExpiredFeb 21, 79Jun 24, 80[H01Q]

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