Granted Patent
Utility
US 5,869,727 · App. 08/908,605
Vacuum process for the manufacture of siloxane-oxyalkylene copolymers
Inventors:
William E. Crane, Paul E. Austin
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Aug 8, 1997
Inventors
William E. Crane
Paul E. Austin
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.