US Plant Patent PP31608
Summer Sugarine
Nectarine tree named ‘Summer Sugarine’
UNDER PATENT
Still under patent. Protection ends April 17, 2039.
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
- PP31608
- Filed
- April 17, 2019
- Granted
- March 31, 2020
- Expires
- April 17, 2039
- Assignee
- BRADFORD LOWELL GLEN, QUISENBERRY JON M
- Inventor
- BRADFORD LOWELL GLEN; QUISENBERRY JON M
Abstract
The present invention relates to a new and distinct variety of nectarine tree, Prunus persica, broadly characterized by a large size, vigorous, hardy, self-fertile, productive and regular bearing tree. The variety has a small non-showy blossom and blooms during the mid season, with a chilling requirement of about 550 hours. The fruit matures under the ecological conditions described in mid to late July, with first picking on Jul. 21, 2018. The fruit is uniform, very large in size, sub-acidic and sweet in flavor, globose to oblong in shape, clingstone in type, firm in texture, yellow in flesh color, red to orange in skin color, and has a bitter tasting kernel.
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 ‘Candysweet XII’ (U.S. Plant Pat. No. 27,580) nectarine by having a large size tree, by having globose leaf glands, by being self-fertile, by having a bitter kernel, by having a similar chilling requirement, and by producing nectarines that are mostly red in skin color, yellow in flesh color, clingstone in type, firm in texture, globose to slightly oblong in shape, and sweet in flavor, but is distinguished therefrom by having a small non-showy instead of large showy blossom and by producing nectarines that are larger in size and that mature about twenty-six days later.
Read the full patent: US Plant Patent PP31608 in full — the complete specification, every figure, and the file history.