Granted Patent
Utility
US 5,714,539 · App. 08/130,809
Polymeric surfactant and latex made therefrom
Inventors:
Leon A. Perez, Shanti Swarup, Edward E. McEntire, Lisa E. Jakiela
Patented Case
View Patent ↗
Granted: Feb 3, 1998
Filed: Oct 4, 1993
Inventors
Leon A. Perez
Shanti Swarup
Edward E. McEntire
Lisa E. Jakiela
Assignee (at issue)
PPG Industries, 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.