Granted Patent
Utility
US 4,282,665 · App. 06/118,971
Excavator tooth assembly
Inventors:
Robert N. Fletcher, Damon N. Christian
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Feb 6, 1980
Inventors
Robert N. Fletcher
Damon N. Christian
Assignee (at issue)
Dresser Industries, 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.