Granted Patent
Utility
US 4,921,238 · App. 07/271,901
Sheet feeder having preactuated picker roller
Inventor:
Donald Lane
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Nov 15, 1988
Inventor
Donald Lane
Assignee (at issue)
THE BRANDT COMPANIES, 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.