Writing instrument
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Description
The broken line showing of a push button and the writing tip and its housing is included for the purpose of illustrating environment and forms no part of the claimed design.
Claims
The ornamental design for a writing instrument, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
D410030 | May 18, 1999 | Sunaga |
D441793 | May 8, 2001 | Takemura |
D444498 | July 3, 2001 | Izushima |
D450347 | November 13, 2001 | Keda |
D452274 | December 18, 2001 | Keda |
D508950 | August 30, 2005 | Kiple et al. |
D536035 | January 30, 2007 | Cetera |
D540863 | April 17, 2007 | Qiu |
D546886 | July 17, 2007 | Cetera |
D550282 | September 4, 2007 | Neuenschwander et al. |
D558827 | January 1, 2008 | Feng et al. |
D562891 | February 26, 2008 | Qiu et al. |
- U.S. Des. Appl. No. 29/240,732, filed on Oct. 18, 2005.
Patent History
Patent number: D579050
Type: Grant
Filed: Apr 18, 2008
Date of Patent: Oct 21, 2008
Assignee: Sanford, L.P. (Oak Brook, IL)
Inventors: Sona N. Patadia (Chicago, IL), Michael A. Serafin (Orland Park, IL)
Primary Examiner: Elizabeth A Albert
Attorney: Marshall Gerstein & Borun LLP
Application Number: 29/306,930
Type: Grant
Filed: Apr 18, 2008
Date of Patent: Oct 21, 2008
Assignee: Sanford, L.P. (Oak Brook, IL)
Inventors: Sona N. Patadia (Chicago, IL), Michael A. Serafin (Orland Park, IL)
Primary Examiner: Elizabeth A Albert
Attorney: Marshall Gerstein & Borun LLP
Application Number: 29/306,930
Classifications
Current U.S. Class:
Substantially Circular Or Oval In Cross Section (D19/51)