Granted Patent
Utility
US 6,316,689 · App. 09/423,011
25-hydroxyvitamin D3 24-hydroylase transgenic rats
Inventors:
Hisao Kasuga, Masami Isaka, Kunio Matsuoka
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Oct 27, 1999
Inventors
Hisao Kasuga
Masami Isaka
Kunio Matsuoka
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.