Granted Patent
Utility
US 5,056,574 · App. 07/439,802
Tire chain with cross members forming a zig-zag pattern
Inventors:
Joseph D. Maresh, Rene Martinelli, Daniel B. Griffith, Jack H. Burns, Steven A. Dehne
Patented Case
View Patent ↗
Granted: Oct 15, 1991
Filed: Nov 21, 1989
Inventors
Joseph D. Maresh
Rene Martinelli
Daniel B. Griffith
Jack H. Burns
Steven A. Dehne
Assignee (at issue)
Burns Bros., 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.