Granted Patent
Utility
US 6,271,155 · App. 09/245,649
Composite sheet comprising a non-woven fabric and a film
Inventors:
Takeshi Noma, Shingo Horiuchi, Yoshimi Tsujiyama
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Feb 8, 1999
Inventors
Takeshi Noma
Shingo Horiuchi
Yoshimi Tsujiyama
Assignee (at issue)
Chisso 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.