Granted Patent
Utility
US 5,585,420 · App. 08/492,005
Method of producing scratch resistant polymer compositions
Inventors:
John Russell Grasmeder, Christopher Ian Lindsay
Patented Case
View Patent ↗
Granted: Dec 17, 1996
Filed: Jul 19, 1995
Inventors
John Russell Grasmeder
Christopher Ian Lindsay
Assignee (at issue)
BASF SE
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.