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The Patent Garden

US Plant Patent PP7440

Aglaonema plant named Rembrandt

PUBLIC DOMAIN

Patent expired July 5, 2009. 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.

The record

Patent number
PP7440
Filed
July 5, 1989
Granted
February 5, 1991
Expires
July 5, 2009

No cultivar name of record

This patent does not name the plant. Through the 1980s and early 1990s that was still common: naming every new cultivar only became standard practice as plants began to be marketed under brand names. The grant identifies this one by its number and by a written description instead.

Nothing here is missing from our records: the patent itself states no name. Where one exists we show it, and we do not invent one.

Abstract

A new and distinct cultivar of Aglaonema plant named `Rembrandt` characterized by its unique leaf coloring comprised of dark green and gray-green stripes, and yellow spots and midribs, pink petioles, free branching resulting in a wide appearance, relatively large leaves, and short underground stolons.

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

I claim: 1. A new and distinct cultivar of Aglaonema plant named `Rembrandt`, as described and illustrated.

Read the full patent: US Plant Patent PP7440 in full — the complete specification, every figure, and the file history.