Granted Patent
Utility
US 5,164,732 · App. 07/446,234
Highway vehicle identification system with high gain antenna
Inventors:
William K. Brockelsby, Conrad M. B. Walker, Michael Hryciuk, Donald P. Gillis
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Dec 5, 1989
Inventors
William K. Brockelsby
Conrad M. B. Walker
Michael Hryciuk
Donald P. Gillis
Assignee (at issue)
EID Electronic Identification Systems Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.