Granted Patent
Utility
US 5,853,437 · App. 08/896,613
Self-cleaning and self-sealing particle filter
Inventors:
Klaus J. Peter, Osama Ibrahim
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Jul 18, 1997
Inventors
Klaus J. Peter
Osama Ibrahim
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.