Granted Patent
Utility
US 6,478,513 · App. 10/090,310
Fluid pumping apparatus for particulate material system
Inventors:
Fumii Higuchi, Ronald B. Gaiser
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Mar 4, 2002
Inventors
Fumii Higuchi
Ronald B. Gaiser
Assignee (at issue)
Xerox 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.