Granted Patent
Utility
US 4,283,090 · App. 06/080,408
Conveyor mounted excavator
Inventor:
Tyman H. Fikse
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Oct 1, 1979
Inventor
Tyman H. Fikse
Assignee (at issue)
Robbins, 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.