Granted Patent
Utility
US 4,494,656 · App. 06/481,176
Down and stuck ware inspection method and apparatus
Inventors:
Timothy W. Shay, Mark P. Claypool
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Apr 1, 1983
Inventors
Timothy W. Shay
Mark P. Claypool
Assignee (at issue)
Powers Manufacturing, 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.