I claim the ornamental design for an I-joist, as shown and described.
A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.
FIG. 1 is a perspective view of an I-joist showing my new design;
FIG. 2 is a front elevational view of the I-joist of FIG. 1, the rear elevation view being identical thereto;
FIG. 3 is a top plan view of the I-joist of FIG. 1, the bottom plan view being identical thereto;
FIG. 4 is a right side view of the right side of the I-joist of FIG. 1, the left side elevational view being identical thereto; and,
FIG. 5 is a another perspective view of the I-joist in FIG. 1.
The I-joist is shown with a symbolic break in its length. The appearance of any portion of the I-joist between the jagged break lines forms no part of the claimed design.
Complete production line of wood I-joist manufacturing apparatus the method of manufacture, and the I-joist product, having lumber chords and a plywood web