Granted Patent
Utility
US 5,944,859 · App. 08/642,203
Hot gas filter and system assembly
Inventors:
Thomas E. Lippert, Kathryn M. Palmer, Gerald J. Bruck, Mary Anne Alvin, Eugene E. Smeltzer, Dennis M. Bachovchin
Patented Case
View Patent ↗
Granted: Aug 31, 1999
Filed: May 6, 1996
Inventors
Thomas E. Lippert
Kathryn M. Palmer
Gerald J. Bruck
Mary Anne Alvin
Eugene E. Smeltzer
Dennis M. Bachovchin
Assignee (at issue)
Siemens Westinghouse Power Corporation
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.