Granted Patent
Utility
US 6,428,302 · App. 09/662,170
Universal blow mold assembly
Inventor:
Tar Tsau
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Sep 14, 2000
Inventor
Tar Tsau
Assignee (at issue)
Wentworth Mold Ltd.
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.