Granted Patent
Utility
US 4,827,821 · App. 06/928,835
Cutting chain
Inventors:
Lewis A. Scott, Johann Weber
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Nov 10, 1986
Inventors
Lewis A. Scott
Johann Weber
Assignee (at issue)
Omark 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.