Granted Patent
Utility
US 6,138,047 · App. 09/021,018
Low frequency PWM generation method for a microprocessor-based controller
Inventors:
Jerry L. Proffitt, Lawrence Edward Piekarski
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Feb 9, 1998
Inventors
Jerry L. Proffitt
Lawrence Edward Piekarski
Assignee (at issue)
DELCO ELECTRONICS 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.