Granted Patent
Utility
US 4,843,500 · App. 07/038,049
Disk storage drive
Inventors:
Dieter Elsasser, Johann von der Heide
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Apr 14, 1989
Inventors
Dieter Elsasser
Johann von der Heide
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.