Granted Patent
Utility
US 5,766,748 · App. 08/754,260
Stretched film of lactic acid-based polymer
Inventors:
Shuhei Ikado, Takayuki Kuroki, Masumi Saruwatari, Naoki Kobayashi, Kazuhiko Suzuki, Hirotaka Wanibe
Patented Case
View Patent ↗
Granted: Jun 16, 1998
Filed: Nov 20, 1996
Inventors
Shuhei Ikado
Takayuki Kuroki
Masumi Saruwatari
Naoki Kobayashi
Kazuhiko Suzuki
Hirotaka Wanibe
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.