Granted Patent
Utility
US 6,221,863 · App. 09/475,383
3,4-dihydro-2H-benzo[1,4]oxazine derivatives
Inventors:
Richard E. Mewshaw, Uresh S. Shah
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Dec 30, 1999
Inventors
Richard E. Mewshaw
Uresh S. Shah
Assignee (at issue)
Amerimas Home Products, 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.