US Plant Patent PP13495
Sweet Pearl
Nectarine tree named ‘Sweet Pearl’
PUBLIC DOMAIN
Patent expired December 13, 2021. 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
- PP13495
- Filed
- December 13, 2001
- Granted
- January 21, 2003
- Expires
- December 13, 2021
- Inventor
- BRADFORD LOWELL GLEN
Abstract
The present invention relates to a nectarine tree, Prunus persica , and more particularly to a new distinct variety broadly characterized by a medium size, vigorous, hardy, self-fertile, productive and regular bearing tree. The fruit matures under the ecological conditions described approximately the first week in July, with first picking on Jul. 3, 2001. The fruit is uniformly large in size, very good in flavor, globose in shape, freestone in type, firm in texture, white in flesh color, and red in skin color. The variety was developed as a first generation cross using ‘Red Glen’U.S Plant Pat. No. 7,193) yellow flesh nectarine as the selected seed parent and an unnamed white flesh nectarine as the selected pollen parent.
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 nectarine tree, substantially as illustrated and described, that is most similar to ‘Grand Pearl’ (U.S. Plant Pat. No. 9,960) nectarine by producing nectarines that are white in flesh color, subacid and sweet in flavor, and mostly red in skin color, but is distinguished therefrom and an improvement thereon by producing fruit that is freestone instead of clingstone and that matures about seven days earlier.
Read the full patent: US Plant Patent PP13495 in full — the complete specification, every figure, and the file history.