Granted Patent
Utility
US 5,867,075 · App. 08/627,773
Surface wave dual converter for a dual filter in particular for television sets
Inventor:
Alice Fischerauer
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Apr 1, 1996
Inventor
Alice Fischerauer
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.