Ring binder having a torsionally stiffened blade
Latest Hong Kong Stationery Manufacturing Co., Ltd. Patents:
Description
FIG. 1 is a side elevational view of a ring binder, showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a bottom plan view of one blade of the binder shown separately for ease of illustration; and,
FIG. 5 is a sectional view taken on the plane 5—5 in FIG. 4.
Claims
The ornamental design for ring binder having a torsionally stiffened blade, as shown and described.
Referenced Cited
U.S. Patent Documents
D389182 | January 13, 1998 | Law |
D389183 | January 13, 1998 | Chan |
D397146 | August 18, 1998 | Chan |
D405113 | February 2, 1999 | Ko |
D430898 | September 12, 2000 | To |
2612169 | September 1952 | Segal |
5788390 | August 4, 1998 | Law |
5788391 | August 4, 1998 | Cheung |
5807006 | September 15, 1998 | Cheung |
5810500 | September 22, 1998 | Whaley |
5836709 | November 17, 1998 | Cheung |
5868513 | February 9, 1999 | Law |
6109813 | August 29, 2000 | To et al. |
Patent History
Patent number: D448045
Type: Grant
Filed: Dec 20, 2000
Date of Patent: Sep 18, 2001
Assignee: Hong Kong Stationery Manufacturing Co., Ltd. (Kowloon)
Inventor: Chung Nin Ko (Kowloon)
Primary Examiner: Paula A. Mortimer
Attorney, Agent or Law Firm: Shoemaker and Mattare
Application Number: 29/134,310
Type: Grant
Filed: Dec 20, 2000
Date of Patent: Sep 18, 2001
Assignee: Hong Kong Stationery Manufacturing Co., Ltd. (Kowloon)
Inventor: Chung Nin Ko (Kowloon)
Primary Examiner: Paula A. Mortimer
Attorney, Agent or Law Firm: Shoemaker and Mattare
Application Number: 29/134,310
Classifications