Granted Patent
Utility
US 5,660,747 · App. 08/334,563
Method of laser marking of produce
Inventors:
Greg Drouillard, Rowland W. Kanner
Patented Case
View Patent ↗
Granted: Aug 26, 1997
Filed: Nov 4, 1994
Inventors
Greg Drouillard
Rowland W. Kanner
Assignee (at issue)
ATRION MEDICAL PRODUCTS, 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.