Granted Patent
Utility
US 4,896,255 · App. 07/368,890
Power pack comprising resonant converter
Inventors:
Manfred Schlenk, Edwin Hielscher, Werner Loges
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Jun 21, 1989
Inventors
Manfred Schlenk
Edwin Hielscher
Werner Loges
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.