Granted Patent
Utility
US 5,516,761 · App. 08/333,936
Pour-on formulations containing polymeric material
Inventors:
Hoo-Kyun Choi, James B. Williams
Patented Case
View Patent ↗
Granted: May 14, 1996
Filed: Nov 3, 1994
Inventors
Hoo-Kyun Choi
James B. Williams
Assignee (at issue)
MERCK & CO., 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.