Granted Patent
Utility
US 5,641,806 · App. 08/419,293
Growth promotion and feed utilization in swine with Frenolicin B
Inventors:
Howard George Eisenbeis, Ross William Miller, Eugene George Schildrnecht
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Apr 10, 1995
Inventors
Howard George Eisenbeis
Ross William Miller
Eugene George Schildrnecht
Assignee (at issue)
Roche Vitamins Inc.
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.