Granted Patent
Utility
US 4,603,077 · App. 06/718,979
Water-absorbing laminate and production process thereof
Inventors:
Yoshimasa Fujimoto, Hirotoshi Miyazaki
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: Apr 2, 1985
Inventors
Yoshimasa Fujimoto
Hirotoshi Miyazaki
Assignees (at issue)
Mitsui Petrochemical Industries, Ltd.
Tokyo Serofan 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.