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US Plant Patent PP23941

Copper Queen

Hibiscus plant named ‘Copper Queen’

UNDER PATENT

Still under patent. Protection ends June 20, 2031.

Twenty years from the filing date would end on February 24, 2031. This patent earned 116 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP23941, the photograph of Copper Queen printed in the patent.
Figure 1 from US Plant Patent PP23941, 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
PP23941
Filed
February 24, 2011
Granted
October 1, 2013
Expires
June 20, 2031
Assignee
ZWETZIG GRETCHEN
Inventor
ZWETZIG GRETCHEN

Abstract

A new and distinct cultivar of winter hardy Hibiscus plant named ‘Copper Queen’ is the result of a unique hybridization. This new and distinct cultivar is characterized primarily as to its novelty by its extreme cold hardiness to Zone 4, its large thick-textured and heavily streaked flowers of red, pink and white and its ovate to “Maple-shaped” foliage with its reddish-purple coloration, compactness of approximately 2½ feet, its vigorous and uniform breaking habit and its floriferous nature from midsummer until frost.

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

The invention claimed is: 1. A new and distinct cultivar of hardy Hibiscus plant, as herein shown and described, characterized by its compact nature, refined ovate to “maple-shaped” foliage of a bronze-purple coloration, its large heavily streaked, red, hot-pink and white flowers, its vigor and its hardiness.

Read the full patent: US Plant Patent PP23941 in full — the complete specification, every figure, and the file history.