Granted Patent
Utility
US 5,310,782 · App. 08/069,605
Method for manufacturing biodegradable high molecular aliphatic polyester
Inventors:
Eiichiro Takiyama, Takashi Fujimaki, Shigekatu Seki, Takao Hokari, Yoshitaka Hatano
Patented Case
View Patent ↗
Granted: May 10, 1994
Filed: Jun 1, 1993
Inventors
Eiichiro Takiyama
Takashi Fujimaki
Shigekatu Seki
Takao Hokari
Yoshitaka Hatano
Assignee (at issue)
Showa Highpolymer Co., 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.