Granted Patent
Utility
US 6,227,145 · App. 09/274,982
Household animal waste collection sheet
Inventors:
Yuki Miyamoto, Kengo Ochi
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Mar 23, 1999
Inventors
Yuki Miyamoto
Kengo Ochi
Assignee (at issue)
Uni-Heartous 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.