Granted Patent
Utility
US 5,920,332 · App. 08/641,109
Ink barrier for fluid reservoir vacuum or pressure line
Inventor:
Jeffrey B. Brooks
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Apr 29, 1996
Inventor
Jeffrey B. Brooks
Assignee (at issue)
Markem 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.