Patent
   D399212
Priority
Feb 09 1996
Filed
Feb 09 1996
Issued
Oct 06 1998
Expiry
Oct 06 2012
Assg.orig
Entity
unknown
26
11
n/a
The ornamental design for a radiused piston head, as shown.

FIG. 1 is a top perspective view;

FIG. 2 is a bottom perspective view;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is a side view;

FIG. 6 is a side view;

FIG. 7 is a side view; and,

FIG. 8 is a side view.

Roderweiss, Ronald W., Hall, Frederick P.

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D810272, Mar 04 2016 SACK IP LAW P C Ear plug having piston-like exterior
D831097, Sep 13 2016 Fedex Corporate Services, Inc. Camera mount housing
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ER1094,
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Patent Priority Assignee Title
4111104, Mar 30 1977 General Motors Corporation Engine with low friction piston
4245611, Sep 05 1978 General Motors Corporation Ceramic insulated engine pistons
4342291, Jan 16 1980 Expandable piston motor
4445467, Aug 10 1982 J-W OPERATING COMPANY, A CORP OF TEXAS Two-cycle stratified charge gas engine
4487179, Jan 03 1983 Internal combustion engine
4541377, Jan 23 1985 Piston dome
4669431, Jan 23 1986 Internal combustion engine with dual combustion chambers
CA960528,
CA960528,
D287599, Jun 03 1983 AE PLC Piston
GB2105439,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 09 1996HD Performance Products Inc.(assignment on the face of the patent)
Apr 25 1996RODERWEISS, RONALD W HD PERFORMANCE PRODUCTS, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0079800679 pdf
Apr 25 1996HALL, FREDERICK P HD PERFORMANCE PRODUCTS, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0079800679 pdf
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