US Plant Patent PP16729

Improbra

Spathiphyllum plant named ‘Improbra’

PUBLIC DOMAIN

Patent expired April 4, 2025. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on January 18, 2025. This patent earned 76 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP16729, the photograph of Improbra printed in the patent. — Figure 1 from US Plant Patent PP16729, 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: PP16729
Filed: January 18, 2005
Granted: June 27, 2006
Expires: April 4, 2025
Assignee: CORNELIS DANIEL
Inventor: CORNELIS DANIEL

Abstract

A new cultivar of Spathiphyllum plant named ‘Improbra’ that is characterized by white spathes and dark green, glossy leaves.

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 ‘Improbra’ as described and illustrated.

Read the full patent: US Plant Patent PP16729 in full — the complete specification, every figure, and the file history.