Granted Patent
Utility
US 5,191,987 · App. 07/779,851
Bottle made of saturated polyesters
Inventors:
Hiroji Niimi, Yoshimitsu Moritani
Patented Case
View Patent ↗
Granted: Mar 9, 1993
Filed: Oct 21, 1991
Inventors
Hiroji Niimi
Yoshimitsu Moritani
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.