Dual helical cutter for pencil sharpener
Description
Claims
The ornamental design for dual helical cutter for a pencil sharpener, as shown and described.
Referenced Cited
U.S. Patent Documents
3746061 | July 1973 | Nakazaki |
5031484 | July 16, 1991 | Packer |
5115697 | May 26, 1992 | Rodriguez et al. |
D359968 | July 4, 1995 | Ekblad et al. |
D363728 | October 31, 1995 | Asano |
6402438 | June 11, 2002 | Boyer |
6997650 | February 14, 2006 | Voigt et al. |
7802946 | September 28, 2010 | Ishida |
20020081161 | June 27, 2002 | Yamada et al. |
20030002928 | January 2, 2003 | Soltau et al. |
20030190201 | October 9, 2003 | Marusich et al. |
20100175788 | July 15, 2010 | Yeh et al. |
20100310329 | December 9, 2010 | Harif |
Patent History
Patent number: D649989
Type: Grant
Filed: Jun 29, 2011
Date of Patent: Dec 6, 2011
Assignee: Elmer's Products, Inc. (Westerville, OH)
Inventor: Benjamin Dunlap (Statesville, NC)
Primary Examiner: Patricia Palasik
Attorney: McNees Wallace & Nurick, LLC
Application Number: 29/396,420
Type: Grant
Filed: Jun 29, 2011
Date of Patent: Dec 6, 2011
Assignee: Elmer's Products, Inc. (Westerville, OH)
Inventor: Benjamin Dunlap (Statesville, NC)
Primary Examiner: Patricia Palasik
Attorney: McNees Wallace & Nurick, LLC
Application Number: 29/396,420
Classifications
Current U.S. Class:
Cutting Tool, E.g., Drill Bit, Etc. (D15/139)