Granted Patent
Utility
US 5,487,334 · App. 08/022,557
Apparatus for producing characters on a product
Inventors:
Ralph Chew, Robert W. Ekis
Patented Case
View Patent ↗
Granted: Jan 30, 1996
Filed: Feb 25, 1993
Inventors
Ralph Chew
Robert W. Ekis
Assignee (at issue)
Matthews International 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.