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US Plant Patent PP16839

Carmen

Rhododendron plant named ‘Carmen’

PUBLIC DOMAIN

Patent expired May 5, 2025. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on March 17, 2025. This patent earned 49 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP16839, the photograph of Carmen printed in the patent.
Figure 1 from US Plant Patent PP16839, 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
PP16839
Filed
March 17, 2005
Granted
July 18, 2006
Expires
May 5, 2025
Inventor
VANDERHAEGEN JOHAN

Abstract

A new cultivar of Rhododendron plant named ‘Carmen’ that is characterized by vigorous growth, good leaf retention, double light pink flowers, a flower life of 3 to 4 weeks and winter hardiness to −10 degrees Centigrade.

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

1. A new and distinct variety of Rhododendron plant named ‘Carmen’ as described and illustrated.

Read the full patent: US Plant Patent PP16839 in full — the complete specification, every figure, and the file history.