Granted Patent
Utility
US 4,800,307 · App. 07/067,787
Replaceable circuit board mounting system in outer rotor motors
Inventor:
Georg Papst
Patented Case
View Patent ↗
Granted: Jan 24, 1989
Filed: Jul 14, 1987
Inventor
Georg Papst
Assignee (at issue)
Papst Motoren
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.