Granted Patent
Utility
US 5,507,400 · App. 08/251,841
Slackless drawbar or coupler with swivel mounting
Inventors:
Jack R. Long, Andreas Haas
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Jun 1, 1994
Inventors
Jack R. Long
Andreas Haas
Assignee (at issue)
National Casting Incorporated
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.