Granted Patent
Utility
US 6,275,539 · App. 09/119,365
System and method for modulating a frequency signal
Inventor:
Steven P. Kulha
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Jul 20, 1998
Inventor
Steven P. Kulha
Assignee (at issue)
Lear Automotive Dearborn, 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.