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The Patent Garden

US Plant Patent PP7803

Autumn Spire

Red maple tree named Autumn Spire

PUBLIC DOMAIN

Patent expired May 22, 2010. 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
PP7803
Filed
May 22, 1990
Granted
February 25, 1992
Expires
May 22, 2010

Abstract

A red maple tree which exhibits an upright broad-columnar form, early autumn maturity, good winter hardiness, excellent red autumn leaf color, and seedlessness.

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 variety of red maple tree, substantially as shown and described herein, characterized particularly as to novelty by the unique combination of an upright broad-columnar form, early autumn maturity, good winter hardiness, excellent red autumn leaf color, and absence of seeds.

Read the full patent: US Plant Patent PP7803 in full — the complete specification, every figure, and the file history.