Granted Patent
Utility
US 5,598,438 · App. 08/428,142
Cordless telecommunication apparatus
Inventor:
Jurgen Lepping
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: May 1, 1995
Inventor
Jurgen Lepping
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.