Heavy duty paper punch

The ornamental design for a heavy duty paper punch, as shown and described.

FIG. 1 is a front perspective view of a heavy duty paper punch showing my new design;

FIG. 2 is a top plan view thereof; and

FIG. 3 is a rear elevational view thereof.

The bottom of the heavy duty paper punch is plain and unornamented.

Patent	Priority	Assignee	Title
D289776,	Oct 03 1985	STERLING PLASTICS CO	Two hole punch assembly
D295192,	Nov 04 1985	General Binding Corporation; VeloBind, Incorporated	Hand-operated paper punch
D300332,	Mar 29 1985	Carl Manufacturing Co., Ltd.	Punch
D329254,	Jun 20 1990	Carl Jimuki Kabhshiki Kaisha	Punch
D361786,	May 09 1994		Punch
D655344,	Jul 25 2008	Mark A., Bedol	Hole punch
D655754,	Mar 25 2011	OFFICEMATE, LLC	Paper punch

Patent	Priority	Assignee	Title
4036088,	Aug 30 1976	STERLING PLASTICS CO	Paper punch with variable spacing
183154,
202007,

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Jan 04 1983	GOERTZ, ALBRECHT	ROLODEX CORPORATION, A CORP OF DEL	ASSIGNMENT OF ASSIGNORS INTEREST	004083	0054	pdf
Jan 10 1983		Rolodex Corporation	(assignment on the face of the patent)
Dec 12 1988	Rolodex Corporation	BANKERS TRUST COMPANY, A NEW YORK BANKING CORPORATION	SECURITY INTEREST SEE DOCUMENT FOR DETAILS	005001	0879	pdf
Dec 12 1988	Rolodex Corporation	WELLS FARGO BANK, N A ,	SECURITY INTEREST SEE DOCUMENT FOR DETAILS	005004	0200	pdf
Mar 30 1993	Rolodex Corporation	Bankers Trust Company	SECURITY INTEREST SEE DOCUMENT FOR DETAILS	006512	0846	pdf
Nov 21 1994	Rolodex Corporation	CITICORP USA, INC	SECURITY INTEREST SEE DOCUMENT FOR DETAILS	007242	0408	pdf
Mar 05 1997	Insilco Corporation	STERLING PLASTICS CO	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	008423	0564	pdf
Mar 05 1997	Rolodex Corporation	STERLING PLASTICS CO	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	008423	0564	pdf

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