Granted Patent
Utility
US 4,015,046 · App. 05/660,750
Printing blanket and method of making same
Inventors:
Melvin D. Pinkston, Robert L. Hartenstein
Patented Case
View Patent ↗
Granted: Mar 29, 1977
Filed: Feb 23, 1976
Inventors
Melvin D. Pinkston
Robert L. Hartenstein
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.