Granted Patent
Utility
US 4,199,287 · App. 05/914,986
Method and apparatus for stacking block-like articles
Inventor:
Thomas R. Salts
Patented Case
View Patent ↗
Granted: Apr 22, 1980
Filed: Jun 12, 1978
Inventor
Thomas R. Salts
Assignee (at issue)
Besser 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.