IP Library › Granted Patent US 6,418,928
Granted Patent Utility
US 6,418,928 · App. 09/668,176

Multi-seal respirator mask

Inventors: Steven S. Bordewick, Gary L. Hansen
Patented Case View Patent ↗
Granted: Jul 16, 2002 Filed: Sep 25, 2000
Inventors
Steven S. Bordewick
Gary L. Hansen
Assignee (at issue)
MALLINCKRODT LLC

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Quick Facts
Patent No.
US 6,418,928
App. No.
09/668,176
Filed
2000-09-25
Granted
2002-07-16
Kind
B1