Granted Patent
Utility
US 4,292,575 · App. 06/105,963
Control signal transmitter for the commutating device of an electronically commutated d-c motor
Inventors:
Hans Kuhnlein, Hans Gruntleitner, Hermann Ebert
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Dec 21, 1979
Inventors
Hans Kuhnlein
Hans Gruntleitner
Hermann Ebert
Assignee (at issue)
Siemens Aktiengesellschaft
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.