Granted Patent
Utility
US 6,299,903 · App. 09/251,597
Delayed release pharmaceutical formulation containing a .beta.-lactam antibiotic
Inventors:
Ernest Lionel Gilbert Rivett, Francis Walter Grimmett, Michael William Hartnell
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Feb 17, 1999
Inventors
Ernest Lionel Gilbert Rivett
Francis Walter Grimmett
Michael William Hartnell
Assignee (at issue)
SmithKline Beeacham P.L.C.
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.