Granted Patent
Utility
US 4,560,558 · App. 06/494,751
3-Alkyl-8-chloro-5,6-dihydrofuro-[3,2-f]-1,2-benzisoxazole-6-carboxylic acids
Inventors:
James A. Parks, Jacob J. Plattner
Patented Case
View Patent ↗
Granted: Dec 24, 1985
Filed: May 16, 1983
Inventors
James A. Parks
Jacob J. Plattner
Assignee (at issue)
Abbott Laboratories
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.