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US Plant Patent PP18037

Spoppo

Mushroom variety named ‘Spoppo’

PUBLIC DOMAIN

Patent expired July 7, 2025. 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 PP18037, the photograph of Spoppo printed in the patent.
Figure 1 from US Plant Patent PP18037, 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
PP18037
Filed
July 7, 2005
Granted
September 18, 2007
Expires
July 7, 2025
Assignee
PRAKTIJKONDERZOEK PLANT & OMGE
Inventor
BAARS JOHANNES JACOBUS PETRUS

Abstract

‘Spoppo’ is a new variety of oyster mushroom that produces no spores and has well-developed fleshy caps.

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 Pleurotus ostreatus mushroom as described and illustrated.

Read the full patent: US Plant Patent PP18037 in full — the complete specification, every figure, and the file history.