Granted Patent
Utility
US 5,740,792 · App. 08/460,604
Inhaler for powdered medications with gear-teeth counter assembly
Inventors:
Charles R. Ashley, Charles M. Huck, Henry R. Sochon, Ken Wilkinson
Patented Case
View Patent ↗
Granted: Apr 21, 1998
Filed: Jun 1, 1995
Inventors
Charles R. Ashley
Charles M. Huck
Henry R. Sochon
Ken Wilkinson
Assignee (at issue)
SCHERING CORPORATION
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.