Granted Patent
Utility
US 4,669,721 · App. 06/854,177
Sheet transport with bowed guide
Inventor:
Dwight G. Westover
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Apr 21, 1986
Inventor
Dwight G. Westover
Assignee (at issue)
Bell and Howell, 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.