Granted Patent
Utility
US 4,645,187 · App. 06/650,932
Draft gear assembly
Inventors:
Wajih Kanjo, Howard Sommerfeld
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Sep 14, 1984
Inventors
Wajih Kanjo
Howard Sommerfeld
Assignee (at issue)
American Standard 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.