Granted Patent
Utility
US 4,498,293 · App. 06/479,795
Hydraulic log splitter
Inventor:
Jack T. Gregory
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Mar 28, 1983
Inventor
Jack T. Gregory
Assignee (at issue)
Gregory Tool Systems, 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.