Granted Patent
Utility
US 5,868,933 · App. 08/877,080
Antimicrobial filter cartridge
Inventors:
Gilbert Patrick, Arvind S. Patil
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Jun 17, 1997
Inventors
Gilbert Patrick
Arvind S. Patil
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.