Granted Patent
Utility
US 6,399,188 · App. 09/430,301
Sintered porous plastic material
Inventors:
Michael W. Smith, Daniel George Fullerton
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Oct 29, 1999
Inventors
Michael W. Smith
Daniel George Fullerton
Assignee (at issue)
Porex 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.