Granted Patent
Utility
US 6,228,549 · App. 09/572,989
Magnetic carrier particles
Inventors:
Patrick M. Lambert, William K. Goebel
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: May 17, 2000
Inventors
Patrick M. Lambert
William K. Goebel
Assignee (at issue)
Heidelberg Digital L.L.C.
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.