Granted Patent
Utility
US 4,016,977 · App. 05/640,556
Assemblage with dual support
Inventor:
Richard G. Krautsack
Patented Case
View Patent ↗
Granted: Apr 12, 1977
Filed: Dec 15, 1975
Inventor
Richard G. Krautsack
Assignee (at issue)
MARKETON 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.