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Information
Patent Grant
D412821
References
Source
Patent Number
D412,821
Date Filed
Monday, August 17, 1998
27 years ago
Date Issued
Tuesday, August 17, 1999
26 years ago
Inventors
Chin Chieh Huang
Examiners
Hyder; Philip S.
Agents
Rosenberg, Klein & Bilker
US Classifications
D08 - Tools and hardware
Field of Search
US
D08 82
D08 83
D08 84
D08 85
D08 86
D08 87
D08 107
081 436
081 437
081 438
081 439
081 440
081 1771
016 110 R
International Classifications
0804
Term of Grant
14Years
Information
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Abstract
Description
Claims
The ornamental design for a screwdriver, as shown and as described.
US Referenced Citations (8)
Number
Name
Date
Kind
D256546
Holland-Letz
Aug 1980
D261610
Fee et al.
Nov 1981
D307236
Cascio et al.
Apr 1990
D346943
Haberstroh
May 1994
D383660
Anderson
Sep 1997
D400420
Shiao
Nov 1998
4951533
Hillinger
Aug 1990
5390572
Gakhar et al.
Feb 1995