US Plant Patent PP12439
Alpha Krome
Avocado tree named ‘Alpha Krome’
PUBLIC DOMAIN
Patent expired August 26, 2019. 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
- PP12439
- Filed
- August 26, 1999
- Granted
- March 5, 2002
- Expires
- August 26, 2019
- Inventor
- KROME WILLIAM HENRY; BROOKS NEAL PALMER
Abstract
A new variety of avocado is distinguished by its late maturing fruit. The tree blooms in April and the blooms are of the A type, flowering in the afternoon. The fruit matures and can be picked in March of the following year. The fruit is an ovate berry that has a thick hard shelled expcarp, which is pebbly textured, dark green, weighs between 15 and 20 ounces and averages 3.5 inches in diameter.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
We claim: 1. A new and distinct variety of avocado tree substantially as described and illustrated and characterized as to novelty by its maturing very late in the season.
Read the full patent: US Plant Patent PP12439 in full — the complete specification, every figure, and the file history.