Granted Patent
Utility
US 4,701,655 · App. 06/803,660
D.C. machine, with mechanical and electrical connections among collector segments
Inventor:
Fritz Schmider
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Dec 2, 1985
Inventor
Fritz Schmider
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.