Granted Patent
Utility
US 5,258,372 · App. 07/672,323
Tetracycline activity enhancement using doxycycline or sancycline
Inventor:
Stuart B. Levy
Patented Case
View Patent ↗
Granted: Nov 2, 1993
Filed: Mar 20, 1991
Inventor
Stuart B. Levy
Assignee (at issue)
Trustees of Tufts College
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.