Granted Patent
Utility
US 4,881,085 · App. 07/086,486
Vacuum powered manually operated cleaning tool for active surfaces of fluid-jet print head
Inventors:
Jeffrey Gibson, Jr., Hal Bayman
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Aug 18, 1987
Inventors
Jeffrey Gibson, Jr.
Hal Bayman
Assignee (at issue)
Burlington Industries LLC
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.