Granted Patent
Utility
US 5,688,463 · App. 08/541,047
Laser processing of discrete sheets of material
Inventors:
Arthur W. Robichaud, Timothy W. Duffy
Patented Case
View Patent ↗
Granted: Nov 18, 1997
Filed: Oct 11, 1995
Inventors
Arthur W. Robichaud
Timothy W. Duffy
Assignee (at issue)
Combibloc, 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.