Granted Patent
Utility
US 4,556,211 · App. 06/494,951
Sheet stacking apparatus and registration mechanism therefor
Inventor:
Roger Carr
Patented Case
View Patent ↗
Granted: Dec 3, 1985
Filed: May 16, 1983
Inventor
Roger Carr
Assignee (at issue)
Savin 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.