Granted Patent
Utility
US 4,966,546 · App. 07/346,032
Convective thermoforming oven
Inventor:
Wen P. Wu
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: May 1, 1989
Inventor
Wen P. Wu
Assignee (at issue)
Mobil Oil Corporation
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.