Granted Patent
Utility
US 4,377,974 · App. 06/211,391
Printing blanket holding bar
Inventor:
A. D. Kirkpatrick
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Nov 28, 1980
Inventor
A. D. Kirkpatrick
Assignee (at issue)
David M Company
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.