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The Patent Garden

US Plant Patent PP15187

Stairway to Heaven

Polemonium reptans named ‘Stairway to Heaven’

PUBLIC DOMAIN

Patent expired August 7, 2022. 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 PP15187, the photograph of Stairway to Heaven printed in the patent.
Figure 1 from US Plant Patent PP15187, 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
PP15187
Filed
August 7, 2002
Granted
September 28, 2004
Expires
August 7, 2022
Assignee
NEW ENGLAND WILDFLOWER SOC
Inventor
CULLINA WILLIAM

Abstract

A new and distinct cultivar of Polemonium plant named Stairway to Heaven, characterized by its distinct white and gray variegated foliage with violet flowers beginning in May and continuing to flower for 14-21 days in mid-spring.

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

It is claimed: 1. A new and distinct variety of Polemonium plant named ‘Stairway to Heaven’, substantially as illustrated and described.

Read the full patent: US Plant Patent PP15187 in full — the complete specification, every figure, and the file history.