Granted Patent
Utility
US 6,479,536 · App. 09/857,293
Benzofuran derivatives, process for the preparation of the same and uses thereof
Inventors:
Shigenori Ohkawa, Yasuyoshi Arikawa, Kouki Kato, Masahiro Okura, Masaki Setoh
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jun 1, 2001
Inventors
Shigenori Ohkawa
Yasuyoshi Arikawa
Kouki Kato
Masahiro Okura
Masaki Setoh
Assignee (at issue)
Takeda Chemical Industries 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.