US Plant Patent PP18846

Sweet Silvana

Spathiphyllum plant named ‘Sweet Silvana’

PUBLIC DOMAIN

Patent expired June 30, 2026. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on May 30, 2026. This patent earned 31 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP18846, the photograph of Sweet Silvana printed in the patent. — Figure 1 from US Plant Patent PP18846, 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: PP18846
Filed: May 30, 2006
Granted: May 27, 2008
Expires: June 30, 2026
Assignee: P C M OLSTHOORN HOLDING BV
Inventor: OLSTHOORN PETRUS C M

Abstract

A new cultivar of Spathiphyllum plant named ‘Sweet Silvana’ that is characterized by white to cream colored spathes, dark green leaves and a fast growth rate.

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 Spathiphyllum plant named ‘Sweet Silvana’ as described and illustrated.

Read the full patent: US Plant Patent PP18846 in full — the complete specification, every figure, and the file history.