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US Plant Patent PP17547

Alaska

Echinacea plant named ‘Alaska’

PUBLIC DOMAIN

Patent expired July 11, 2025. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on June 14, 2025. This patent earned 27 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP17547, the photograph of Alaska printed in the patent.
Figure 1 from US Plant Patent PP17547, 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
PP17547
Filed
June 14, 2005
Granted
April 3, 2007
Expires
July 11, 2025
Assignee
COMPASS PLANTS B V
Inventor
DE WINTER DIRK

Abstract

A new and distinct cultivar of Echinacea plant named ‘Alaska’, characterized by its compact growth habit; rapid growth rate; freely and uniform flowering habit; white-colored ray florets; long and continuous flowering period; and good garden performance.

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

1. A new and distinct cultivar of Echinacea plant named ‘Alaska’, as illustrated and described.

Read the full patent: US Plant Patent PP17547 in full — the complete specification, every figure, and the file history.