Granted Patent
Utility
US 4,725,485 · App. 06/939,510
Textile structure for reinforced composite material
Inventor:
Tetsuro Hirokawa
Patented Case
View Patent ↗
Granted: Feb 16, 1988
Filed: Nov 10, 1986
Inventor
Tetsuro Hirokawa
Assignee (at issue)
Shikishima Canvas Kabushiki Kaisha
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.