Granted Patent
Utility
US 5,968,643 · App. 08/931,574
Microporous film with improved properties
Inventors:
Vasily A. Topolkaraev, Fu-Jya Tsai
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Sep 16, 1997
Inventors
Vasily A. Topolkaraev
Fu-Jya Tsai
Assignee (at issue)
Kimberly-Clark Worldwide, 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.