Granted Patent
Utility
US 5,674,529 · App. 08/472,693
Alkalinizing potassium salt controlled release preparations
Inventors:
Herman L. Marder, Lawrence Kirschner, John J. Steinke, Andrew D. Kurtz, Poul Egon Bertelsen, Nils Gjerlov Hansen, Thyge Borup Hjorth
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Jun 6, 1995
Inventors
Herman L. Marder
Lawrence Kirschner
John J. Steinke
Andrew D. Kurtz
Poul Egon Bertelsen
Nils Gjerlov Hansen
Thyge Borup Hjorth
Assignee (at issue)
Church & Dwight 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.