Granted Patent
Utility
US 6,629,530 · App. 09/748,297
Single-element sealing valve for a respiratory support system
Inventor:
David M. Cise
Patented Case
View Patent ↗
Granted: Oct 7, 2003
Filed: Dec 22, 2000
Inventor
David M. Cise
Assignee (at issue)
Kimberly-Clark Worldwide, 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.