Granted Patent
Utility
US 6,191,178 · App. 09/601,236
Polycarbonate resin foam and shock absorber using the same
Inventors:
Satoru Shioya, Mitsuru Shinohara, Akinobu Hira, Hisao Tokoro
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Jul 31, 2000
Inventors
Satoru Shioya
Mitsuru Shinohara
Akinobu Hira
Hisao Tokoro
Assignee (at issue)
JSP Corporation
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.