Granted Patent
Utility
US 5,876,471 · App. 08/636,432
Filter holder and gasket assembly for candle or tube filters
Inventors:
Thomas E. Lippert, Mary Anne Alvin, Gerald J. Bruck, Eugene E. Smeltzer
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Apr 23, 1996
Inventors
Thomas E. Lippert
Mary Anne Alvin
Gerald J. Bruck
Eugene E. Smeltzer
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.