Granted Patent
Utility
US 5,031,964 · App. 07/541,837
Cutting chain for mining machines
Inventors:
Paul Meisel, Mickey J. Hall, Richard B. Graham
Patented Case
View Patent ↗
Granted: Jul 16, 1991
Filed: Jun 21, 1990
Inventors
Paul Meisel
Mickey J. Hall
Richard B. Graham
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.