Granted Patent
Utility
US 4,501,351 · App. 06/341,364
Chain assembly with plug-in module
Inventor:
Wayne R. Tracy
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Jan 21, 1982
Inventor
Wayne R. Tracy
Assignee (at issue)
Incom International, 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.