IP Library › Granted Patent US 4,649,943
Granted Patent Utility
US 4,649,943 · App. 06/700,565

Cigarette filter and method of making the same

Inventor: Ricky A. Gonterman
Patented Case View Patent ↗
Granted: Mar 17, 1987 Filed: Feb 11, 1985
Inventor
Ricky A. Gonterman
Assignee (at issue)
Brown & Williamson Tobacco Corporation

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Quick Facts
Patent No.
US 4,649,943
App. No.
06/700,565
Filed
1985-02-11
Granted
1987-03-17
Kind
A