Granted Patent
Utility
US 5,604,972 · App. 08/481,995
Method of manufacturing a helical antenna
Inventor:
Charles McCarrick
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Jun 7, 1995
Inventor
Charles McCarrick
Assignee (at issue)
AMSC Subsidiary Corporation
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.