Granted Patent
Utility
US 4,352,901 · App. 06/177,944
Opaque jet ink compositions
Inventors:
Dorothy Maxwell, David Arthur Fell
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: Aug 14, 1980
Inventors
Dorothy Maxwell
David Arthur Fell
Assignee (at issue)
American Can Company
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.