Granted Patent
Utility
US 4,602,717 · App. 06/692,977
Uncoupling lever assembly
Inventor:
Nicholas Krzanowsky
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: Jan 22, 1985
Inventor
Nicholas Krzanowsky
Assignee (at issue)
Stanrail Corporation
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.