Granted Patent
Utility
US 4,697,192 · App. 06/723,789
Two arm planar/conical/helix antenna
Inventors:
Dean A. Hofer, Daniel J. Carlson, Matthew L. Pecak
Patented Case
View Patent ↗
Granted: Sep 29, 1987
Filed: Apr 16, 1985
Inventors
Dean A. Hofer
Daniel J. Carlson
Matthew L. Pecak
Assignee (at issue)
Texas Instruments Incorporated
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.