Granted Patent
Utility
US 5,036,758 · App. 07/306,670
Emboss roll
Inventors:
Yoshinori Kobayashi, Naoyuki Tamura
Patented Case
View Patent ↗
Granted: Aug 6, 1991
Filed: Feb 6, 1989
Inventors
Yoshinori Kobayashi
Naoyuki Tamura
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.
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.