Granted Patent
Utility
US 5,965,460 · App. 08/790,446
Polyurethane composition with (meth)acrylate end groups useful in the manufacture of polishing pads
Inventors:
Joseph F. Rach, Douglas R. Leach
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Jan 29, 1997
Inventors
Joseph F. Rach
Douglas R. Leach
Assignee (at issue)
MacDermid, Incorporated
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.