Granted Patent
Utility
US 5,041,529 · App. 07/427,642
Preparation process for bioabsorbable polyester
Inventors:
Hosei Shinoda, Masami Ohtaguro
Patented Case
View Patent ↗
Granted: Aug 20, 1991
Filed: Oct 27, 1989
Inventors
Hosei Shinoda
Masami Ohtaguro
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.