Granted Patent
Utility
US 4,528,466 · App. 06/133,134
Components for polyphase linear motors
Inventors:
Johann von der Heide, Georg Papst
Patented Case
View Patent ↗
Granted: Jul 9, 1985
Filed: Mar 24, 1980
Inventors
Johann von der Heide
Georg Papst
Assignee (at issue)
Papst Motoren GmbH & Co KG
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.