Granted Patent
Utility
US 6,018,321 · App. 08/851,182
Variable extended cable antenna for a cellular telephone
Inventors:
Kenneth D. Simmons, Stephen P. Price
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: May 5, 1997
Inventors
Kenneth D. Simmons
Stephen P. Price
Assignee (at issue)
Centurion Intl., Inc.
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.