Granted Patent
Utility
US 5,877,268 · App. 08/170,328
Polyethers and polysiloxane copolymers manufactured with double metal cyanide catalysts
Inventors:
Michael W. Jorgenson, Richard A. Budnik, Glenn A. Miller
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Oct 13, 1998
Inventors
Michael W. Jorgenson
Richard A. Budnik
Glenn A. Miller
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.