Granted Patent
Utility
US 5,722,347 · App. 08/773,552
Floating island for aquarium
Inventors:
Kazutoshi Tominaga, Robert C. Krause
Patented Case
View Patent ↗
Granted: Mar 3, 1998
Filed: Dec 27, 1996
Inventors
Kazutoshi Tominaga
Robert C. Krause
Assignee (at issue)
Robert C. Krause
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.