Granted Patent
Utility
US 5,770,522 · App. 08/764,458
Polishing block heater
Inventor:
Francis Richard Bronson
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Nov 12, 1996
Inventor
Francis Richard Bronson
Assignee (at issue)
MEMC Electronic Materials, 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.