Granted Patent
Utility
US 5,712,290 · App. 08/519,832
Medicinal feed for the systemic treatment of ectoparasitic and ectobacterial diseases of fish
Inventors:
Hartmut Schmidt, Gunter Ritter
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Aug 23, 1995
Inventors
Hartmut Schmidt
Gunter Ritter
Assignee (at issue)
Tetra Werke Dr. rer. nat. U. Baensch GmbH
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.