Patent
   D311950
Priority
Jun 20 1988
Filed
Dec 12 1988
Issued
Nov 06 1990
Expiry
Nov 06 2004
Assg.orig
Entity
unknown
13
9
n/a
The ornamental design for a gas-fired boiler for central heating and hot water, as shown and described.

FIG. 1 is a front and right side perspective view of a gas-fired boiler for central heating and hot water, showing my new design;

FIG. 2 is a front and left side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof, the opposite side being a mirror image of that shown;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevation view thereof; and

FIG. 7 is a bottom plan view thereof.

Excell, Michael J.

Patent Priority Assignee Title
D486897, Nov 27 2002 The Marley-Wylain Company Boiler
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D859617, Sep 29 2016 Rinnai America Corporation Hot water heater assembly
Patent Priority Assignee Title
2508736,
4756475, Mar 07 1986 Elettro Termica Sud S.p.A. Gas-fired boiler
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 08 1988EXCELL, MICHAEL J Potterton International LimitedASSIGNMENT OF ASSIGNORS INTEREST 0051370842 pdf
Dec 12 1988Potterton International Limited(assignment on the face of the patent)
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