Granted Patent
Utility
US 6,086,909 · App. 09/249,963
Device and method for treatment of dysmenorrhea
Inventors:
Donald C. Harrison, James H. Liu, Wolfgang A. Ritschel, Roger A. Stern
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: Feb 12, 1999
Inventors
Donald C. Harrison
James H. Liu
Wolfgang A. Ritschel
Roger A. Stern
Assignee (at issue)
UMD, 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.