US design patent No. 31,110 granted to Isaac E. Palmer of Middletown, Connecticut, for a fabric design. The fabric has warp threads in groups of three, where the two outer threads cross each other at intervals (as in leno or gauze) and a straight central thread runs between them. Single weft threads pass between the central and outer threads. The patent has a drawing sheet with two views (Fig. 1 and Fig. 2) showing the two sides of the fabric, and a one-page specification with a single claim.

US Design Patent No. 34,332, granted April 2, 1901 to Isaac E. Palmer of Middletown, Connecticut, for a fabric design. The specification describes warp threads arranged in groups of three, with the two outer threads crossing to form loops and the middle thread running between them. Zigzag weft threads pass between the loops and the middle thread, giving a lace-like open mesh. Two drawings show the two sides of the fabric.

US design patent No. 35,277, granted November 5, 1901 to Isaac E. Palmer of Middletown, Connecticut, for a hammock fabric. The specification describes warp threads grouped in pairs that alternately separate and approach, and weft threads in groups of three whose outer members alternately approach and recede while the central member runs straight across. Two drawings show the face and reverse of the fabric; there are no weaving drafts.

US Design Patent No. 35,753, granted February 18, 1902 to Isaac E. Palmer of Middletown, Connecticut, for a hammock fabric design. The specification describes warp threads in groups of pairs that alternately separate and approach each other, interlocking with weft threads also arranged in pairs. Two drawings show the face and reverse views of the open lattice-like fabric.