IP Library › Granted Patent US 5,701,893
Granted Patent Utility
US 5,701,893 · App. 08/650,466

Disposable face mask

Inventors: John J. Kern, Richard L. Stein, J. Preston Wildrick
Patented Case View Patent ↗
Granted: Dec 30, 1997 Filed: May 20, 1996
Inventors
John J. Kern
Richard L. Stein
J. Preston Wildrick
Assignee (at issue)
Survivair, Inc.

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Quick Facts
Patent No.
US 5,701,893
App. No.
08/650,466
Filed
1996-05-20
Granted
1997-12-30
Kind
A