Patent
   D823485
Priority
Jan 31 2017
Filed
Jan 31 2017
Issued
Jul 17 2018
Expiry
Jul 17 2033
Assg.orig
Entity
unknown
2
65
n/a
The ornamental design for a panel stiffener for wall panel system, as shown and described.

FIG. 1 is a perspective view of a panel stiffener for wall panel system showing our new design.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a left side elevation view thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The article is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.

Macdonald, Robert B., Macdonald, Philip A., Williams, Alexander K., Hoy, Jonathan W.

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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 31 2017Exterior Wall Systems Limited(assignment on the face of the patent)
May 29 2017MACDONALD, PHILIP A EXTERIOR WALL SYSTEMS LIMITED ONTARIO PANELIZATION ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0426510030 pdf
May 30 2017MACDONALD, ROBERT B EXTERIOR WALL SYSTEMS LIMITED ONTARIO PANELIZATION ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0426510030 pdf
Jun 01 2017WILLIAMS, ALEXANDER K EXTERIOR WALL SYSTEMS LIMITED ONTARIO PANELIZATION ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0426510030 pdf
Jun 01 2017HOY, JONATHAN W EXTERIOR WALL SYSTEMS LIMITED ONTARIO PANELIZATION ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0426510030 pdf
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