Granted Patent
Utility
US 6,523,536 · App. 09/804,508
Dual-canister inhaler having a spacer and easy to operate lever mechanism
Inventors:
Eric Fugelsang, Martin F. Muszak
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Mar 12, 2001
Inventors
Eric Fugelsang
Martin F. Muszak
Assignee (at issue)
Birdsong Medical Devices, 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.