Granted Patent
Utility
US 4,684,653 · App. 06/835,457
Pyrido(2,3-d)pyrimidine derivatives
Inventors:
Edward C. Taylor, George P. Beardsley, Peter J. Harrington, Stephen Robert Fletcher
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Mar 3, 1986
Inventors
Edward C. Taylor
George P. Beardsley
Peter J. Harrington
Stephen Robert Fletcher
Assignee (at issue)
The Trustees of Princeton University
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.