Granted Patent
Utility
US 5,284,133 · App. 07/919,030
Inhalation device with a dose-timer, an actuator mechanism, and patient compliance monitoring means
Inventors:
James S. Burns, Daniel Robert Marshak
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Jul 23, 1992
Inventors
James S. Burns
Daniel Robert Marshak
Assignee (at issue)
Armstrong Pharmaceuticals 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.