Granted Patent
Utility
US 5,620,715 · App. 08/195,299
Thermoforming machine with controlled cooling station
Inventors:
James Patrick Hart, Wesley W. Roberts, Charles G. Geurts
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Feb 10, 1994
Inventors
James Patrick Hart
Wesley W. Roberts
Charles G. Geurts
Assignee (at issue)
Penda 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.