Granted Patent
Utility
US 6,270,844 · App. 09/740,779
Method of impregnating a porous polymer substrate
Inventors:
James B. McClain, Timothy J. Romack, James DeYoung
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Dec 19, 2000
Inventors
James B. McClain
Timothy J. Romack
James DeYoung
Assignee (at issue)
Micell Technologies, Inc.
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.