Granted Patent
Utility
US 4,021,909 · App. 05/657,912
Hand portable device for fastening a holding bar on a printing blanket and method of fastening same
Inventor:
Jacob A. Bollmer
Patented Case
View Patent ↗
Granted: May 10, 1977
Filed: Feb 13, 1976
Inventor
Jacob A. Bollmer
Assignee (at issue)
DayCo Holdings, LP
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.