Granted Patent
Utility
US 5,756,944 · App. 08/609,688
Filter muffler
Inventors:
Josef Battig, Reto Meier
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Mar 1, 1996
Inventors
Josef Battig
Reto Meier
Assignee (at issue)
Asea Brown Boveri, S.A.
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.