Granted Patent
Utility
US 5,320,668 · App. 08/006,080
Bleed alleviation using pH-sensitive agents
Inventors:
James P. Shields, Raymond Adamic
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Jan 19, 1993
Inventors
James P. Shields
Raymond Adamic
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.