Granted Patent
Utility
US 4,465,640 · App. 06/386,725
Adjustable choke linkage means
Inventor:
Michael Dougherty
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Jun 9, 1982
Inventor
Michael Dougherty
Assignee (at issue)
Colt Industries Operating 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.