US Plant Patent PP25829
Autumn Pearl
Nectarine tree named ‘Autumn Pearl’
UNDER PATENT
Still under patent. Protection ends April 2, 2034.
Twenty years from the filing date would end on December 16, 2033. This patent earned 107 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25829
- Filed
- December 16, 2013
- Granted
- August 25, 2015
- Expires
- April 2, 2034
- Inventor
- BRADFORD LOWELL GLEN; QUISENBERRY JON MICHAEL
Abstract
The present invention relates to a new and distinct variety of nectarine tree, Prunus persica, broadly characterized by a medium size, moderately vigorous, hardy, self-fertile, productive and regular bearing tree. The variety blooms during the mid to late season and requires about 600 chilling hours. The tree produces a small blossom and reniform leaf glands. The fruit matures under the ecological conditions described in early September, with first picking on Sep. 1, 2013. The fruit has a bitter kernel and is medium in size, globose in shape, clingstone in type, firm in texture, white in flesh color, mostly red in skin color, and a very good tasting balance of low acid and sugar.
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 nectarine tree, substantially as illustrated and described, that is most similar to ‘Pearlicious XVII’ (U.S. Plant Pat. No. 24,835) nectarine by being a medium size tree, by being self-fruitful, and by producing nectarines that are firm, mostly red in skin color, white in flesh color, sweet in flavor, globose in shape, and clingstone in type, but is distinguished therefrom by having a small blossom instead of large and by producing fruit that has a bitter instead of sweet kernel and that matures about one week later when compared side by side during the same year.
Read the full patent: US Plant Patent PP25829 in full — the complete specification, every figure, and the file history.