Granted Patent
Utility
US 4,297,707 · App. 06/045,228
Multiple omnidirectional antenna
Inventors:
Anton Brunner, Nikolaus Willburger
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Jun 4, 1979
Inventors
Anton Brunner
Nikolaus Willburger
Assignee (at issue)
Siemens Aktiengesellschaft
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.