IP Library › Granted Patent US 5,944,592
Granted Patent Utility
US 5,944,592 · App. 08/846,956

Sharpener apparatus

Inventors: Jeffrey Hall, William D. Parker
Patented Case View Patent ↗
Granted: Aug 31, 1999 Filed: Apr 30, 1997
Inventors
Jeffrey Hall
William D. Parker
Assignee (at issue)
Underwriters Laboratories Inc.

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Quick Facts
Patent No.
US 5,944,592
App. No.
08/846,956
Filed
1997-04-30
Granted
1999-08-31
Kind
A