Granted Patent
Utility
US 6,468,942 · App. 09/714,366
Absorptive-filtration media for the capture of waterborne or airborne constituents
Inventor:
John J. Sansalone
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Nov 16, 2000
Inventor
John J. Sansalone
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.