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The Patent Garden

US Plant Patent PP13859

Jack Frost

Brunnera macrophylla plant named ‘Jack Frost’

PUBLIC DOMAIN

Patent expired May 25, 2021. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on March 5, 2021. This patent earned 81 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP13859, the photograph of Jack Frost printed in the patent.
Figure 1 from US Plant Patent PP13859, 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
PP13859
Filed
March 5, 2001
Granted
June 3, 2003
Expires
May 25, 2021
Inventor
WALTERS JOHN D

Abstract

The new and distinctive cultivar of Brunnera named ‘Jack Frost’ characterized by an intense silver coating on top of the leaves with contrasting green veining and leaf edges, and light blue flowers in the spring, suitable for landscape or potted culture.

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

What is claimed is: 1. I claim a new and distinct perennial Brunnera macrophylla plant named ‘Jack Frost’, as herein described and illustrated.

Read the full patent: US Plant Patent PP13859 in full — the complete specification, every figure, and the file history.