Granted Patent
Utility
US 5,447,962 · App. 08/186,920
Degradable foam and use of same
Inventors:
Masanobu Ajioka, Katashi Enomoto, Akihiro Yamaguchi, Kazuhiko Suzuki, Takayuki Watanabe, Yasuhiro Kitahara
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: Jan 27, 1994
Inventors
Masanobu Ajioka
Katashi Enomoto
Akihiro Yamaguchi
Kazuhiko Suzuki
Takayuki Watanabe
Yasuhiro Kitahara
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.