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US Plant Patent PP18402

LISHAL

Oenothera plant named ‘LISHAL’

PUBLIC DOMAIN

Patent expired August 12, 2026. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on April 26, 2026. This patent earned 108 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP18402, the photograph of LISHAL printed in the patent.
Figure 1 from US Plant Patent PP18402, 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
PP18402
Filed
April 26, 2006
Granted
January 8, 2008
Expires
August 12, 2026
Assignee
CATT PETER
Inventor
CATT PETER

Abstract

A new cultivar of Oenothera plant named ‘LISHAL’ which is an herbaceous perennial with upright stems arising from a basal rosette or crown, whose foliage is variegated, with cream margins, and whose flowers appear as terminal corymbs and are bright yellow and cup shaped. In combination these traits set ‘LISHAL’ apart from all other existing varieties of Oenothera known to the inventor.

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 Oenothera plant named ‘LISHAL’ as described and illustrated.

Read the full patent: US Plant Patent PP18402 in full — the complete specification, every figure, and the file history.