Granted Patent
Utility
US 4,379,428 · App. 06/168,945
Hammer locating and operational means
Inventor:
David E. Schmulian
Patented Case
View Patent ↗
Granted: Apr 12, 1983
Filed: Jul 11, 1980
Inventor
David E. Schmulian
Assignee (at issue)
Burroughs, 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.