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US Plant Patent PP18275

Yorock

Chrysanthemum plant named ‘Yorock’

PUBLIC DOMAIN

Patent expired July 19, 2026. This plant is in the public domain — anyone may propagate and sell it.

No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

Figure 1 of US plant patent PP18275, the photograph of Yorock printed in the patent.
Figure 1 from US Plant Patent PP18275, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number
PP18275
Filed
July 19, 2006
Granted
December 4, 2007
Expires
July 19, 2026
Inventor
VANDENBERG CORNELIS P

Abstract

A new and distinct cultivar of Chrysanthemum plant named ‘Yorock’, characterized by its upright plant habit; dark green-colored foliage; freely and uniformly flowering habit; decorative-type inflorescences that are about 7 cm in diameter; attractive greyed purple-colored ray florets; strong peduncles; and good postproduction longevity.

Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.

1. A new and distinct Chrysanthemum plant named ‘Yorock’ as illustrated and described.

Read the full patent: US Plant Patent PP18275 in full — the complete specification, every figure, and the file history.