Granted Patent
Utility
US 5,230,728 · App. 07/833,589
Method and apparatus for thermally stable mold assembly and support
Inventor:
Ronald A. McMaster
Patented Case
View Patent ↗
Granted: Jul 27, 1993
Filed: Feb 10, 1992
Inventor
Ronald A. McMaster
Assignee (at issue)
Glasstech, 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.