U.S. Patent No. 1,353,709 discloses a token “which may be presented as an expression of friendship or admiration.”

•U.S. Patent No. 2,726,397discloses an apron with interchangeable appliques, explaining “often such persons as housewives and hostesses desire to decorate articles of clothing, curtains, coverings and so forth with figures and designs of various shape and color.” Reportedly this was even more popular than the Valentine-themed vacuum cleaner.

U.S. Patent No. 3,016,178 discloses a box construction, such as Valentines Day boxes, which are intended to contain candy or other comestibles or flowers. This is one of many patents on heart-shaped boxes.

U.S. Patent No. 6,172,328 discloses methods for etching, cutting and/or altering, the surface of a flower, plant, cut foliage, allowing one to inscribe a Valentine’s Day greeting on the flowers themselves.

U.S. Patent No. 6,053,399 “relates to mailers and envelopes and, more particularly, to envelops and mailers for sending small sachets and photographs.”

U.S. Patent No. 5,160,087 discloses a drinking straw, designed to demonstrate the need for teamwork.

U.S. Patent No. 4993184 discloses a “heart-shaped, free standing, living plant comprises at least two living plants, a left plant and a right plant, formed into opposed lobes forming the heart configuration.”

Last, but not least, U.S. Patent No. 5727565, discloses a heart shaped “kissing shield comprised of a thin, flexible membrane and a frame or holder” to ensure that your Valentine’s Day is both safe and happy!