Granted Patent
Utility
US 4,366,405 · App. 06/180,110
Tachogenerator having stray flux cancelling output coils
Inventor:
Fritz Schmider
Patented Case
View Patent ↗
Granted: Dec 28, 1982
Filed: Aug 21, 1980
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.