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US Plant Patent PP21184

Hokuto-18

Bunashimeji mushroom plant named ‘Hokuto-18’

UNDER PATENT

Still under patent. Protection ends January 29, 2028.

Twenty years from the filing date would end on August 18, 2025. This patent earned 894 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP21184, the photograph of Hokuto-18 printed in the patent.
Figure 1 from US Plant Patent PP21184, 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
PP21184
Filed
August 18, 2005
Granted
August 3, 2010
Expires
January 29, 2028
Assignee
HOKUTO CORP
Inventor
YAMAZAKI MIZUE; OKU TAKESHI; INATOMI SATOSHI; NAMBA KENJI

Abstract

A new and distinct variety of mushroom plant of Bunashimeji mushroom, Hypsizigus marmoreus , named ‘Hokuto-18’, is cultivated by gathering and repeated breeding of fungal strains having dominant traits. This new and distinct variety has good qualitative character and appearance, good keeping quality and storage life and delicious tasting and is exquisite in stability, reproducibility and uniformity when being produced.

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

1. A new, distinct variety of Bunashimeji mushroom as substantially illustrated or described in the specification.

Read the full patent: US Plant Patent PP21184 in full — the complete specification, every figure, and the file history.