Granted Patent
Utility
US 4,537,129 · App. 06/586,157
Offset printing blanket
Inventors:
Frederick F. Heinemann, Thomas O. Gavin
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Mar 5, 1984
Inventors
Frederick F. Heinemann
Thomas O. Gavin
Assignee (at issue)
W. R. Grace & Co.
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.