Granted Patent
Utility
US 6,422,174 · App. 09/509,759
Drinking water additive for birds and method of administering the same
Inventors:
Hiroshi Horikawa, Kazuya Iwasaki, Hiroshi Miyazaki, Toshihiro Marubashi
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Apr 10, 2000
Inventors
Hiroshi Horikawa
Kazuya Iwasaki
Hiroshi Miyazaki
Toshihiro Marubashi
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.