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US Plant Patent PP16373

Kerbelbut

Primula plant named ‘Kerbelbut’

PUBLIC DOMAIN

Patent expired March 20, 2025. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on January 28, 2025. This patent earned 51 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP16373, the photograph of Kerbelbut printed in the patent.
Figure 1 from US Plant Patent PP16373, 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
PP16373
Filed
January 28, 2005
Granted
March 21, 2006
Expires
March 20, 2025
Assignee
KERLEY DAVID W, KERLEY PRISCILLA G
Inventor
KERLEY DAVID W; KERLEY PRISCILLA G

Abstract

A new and distinct cultivar of Primula plant named ‘Kerbelbut’, characterized by its upright, compact and uniform plant habit; large, double, fragrant and bright yellow-colored flowers that are held upright on strong and erect peduncles; large sepals that “frame” the flowers; freely flowering habit; and tolerance to low temperatures.

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 Primula plant named ‘Kerbelbut’, as illustrated and described.

Read the full patent: US Plant Patent PP16373 in full — the complete specification, every figure, and the file history.