Granted Patent
Utility
US 4,814,556 · App. 07/144,161
Camstack and switch assembly and timer utilizing same
Inventor:
Ronald E. Cole
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Jan 15, 1988
Inventor
Ronald E. Cole
Assignee (at issue)
Emhart Industries, 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.