Granted Patent
Utility
US 4,368,993 · App. 06/259,459
Replaceable assembly for multicolor printing
Inventors:
Robert L. Brass, John F. Frega
Patented Case
View Patent ↗
Granted: Jan 18, 1983
Filed: Apr 30, 1981
Inventors
Robert L. Brass
John F. Frega
Assignee (at issue)
Centronics Data Computer 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.