Granted Patent
Utility
US 6,001,891 · App. 08/865,128
Biodegradable aliphatic polyester elastomer and preparation process of same
Inventors:
Chojiro Higuchi, Masatoshi Takagi, Takeshi Kashima, Masanobu Ajioka, Yuji Terado
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: May 29, 1997
Inventors
Chojiro Higuchi
Masatoshi Takagi
Takeshi Kashima
Masanobu Ajioka
Yuji Terado
Assignee (at issue)
MITSUI CHEMICALS, INC.
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.