IP Library › Granted Patent US 4,492,240
Granted Patent Utility
US 4,492,240 · App. 06/391,357

Smoke filter

Inventors: Ernest B. Hayes, Anthony S. Cantell
Patented Case View Patent ↗
Granted: Jan 8, 1985 Filed: Jun 23, 1982
Inventors
Ernest B. Hayes
Anthony S. Cantell

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Quick Facts
Patent No.
US 4,492,240
App. No.
06/391,357
Filed
1982-06-23
Granted
1985-01-08
Kind
A