Granted Patent
Utility
US 4,802,403 · App. 06/910,680
Return mechanism of an actuating drive
Inventors:
Heinrich Lageder, Jaroslav Masek, Kamil Prochazka
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Sep 23, 1986
Inventors
Heinrich Lageder
Jaroslav Masek
Kamil Prochazka
Assignee (at issue)
BBC Brown, Boveri & Company Ltd.
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.