Granted Patent
Utility
US 5,800,846 · App. 08/604,787
Twin-sheet thermoforming apparatus with hydraulic array mold support
Inventor:
James Patrick Hart
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Feb 23, 1996
Inventor
James Patrick Hart
Assignee (at issue)
TriEnda 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.