Granted Patent
Utility
US 4,798,581 · App. 07/112,343
Apparatus for forming a visually detectable element
Inventor:
James L. Jessup
Patented Case
View Patent ↗
Granted: Jan 17, 1989
Filed: Oct 26, 1987
Inventor
James L. Jessup
Assignee (at issue)
The Kendall Company LP
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.