Granted Patent
Utility
US 4,271,968 · App. 05/903,058
Ejector dwell controller for a sorting apparatus
Inventors:
Thomas O. Mehrkam, James F. Lockett
Patented Case
View Patent ↗
Granted: Jun 9, 1981
Filed: May 5, 1978
Inventors
Thomas O. Mehrkam
James F. Lockett
Assignee (at issue)
Geosource, Inc.
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.