Granted Patent
Utility
US 5,489,617 · App. 08/436,788
High viscosity surfactants for the manufacture of polyurethane foams
Inventors:
Glenn A. Miller, David L. Kirchner, Susan B. McVey
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: May 8, 1995
Inventors
Glenn A. Miller
David L. Kirchner
Susan B. McVey
Assignee (at issue)
OSI Specialties, 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.