Granted Patent
Utility
US 5,599,557 · App. 08/325,400
Stable hydrated cephalosporin dry powder for oral suspension formulation
Inventors:
Donald A. Johnson, Lorraine Wearley, Rebecca Galeos, Joel A. Sequeira
Patented Case
View Patent ↗
Granted: Feb 4, 1997
Filed: Oct 27, 1994
Inventors
Donald A. Johnson
Lorraine Wearley
Rebecca Galeos
Joel A. Sequeira
Assignee (at issue)
SCHERING CORPORATION
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.