US Plant Patent PP19537
Blackred I
Interspecific tree named ‘Blackred I’
UNDER PATENT
Still under patent. Protection ends November 26, 2027.
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
- PP19537
- Filed
- November 26, 2007
- Granted
- December 2, 2008
- Expires
- November 26, 2027
- Assignee
- BRADFORD LOWELL GLEN
- Inventor
- BRADFORD LOWELL GLEN
Abstract
The present invention relates to an interspecific tree and more particularly to a new and distinct variety broadly characterized by a medium size, vigorous, hardy, and productive tree. The variety is self-unfruitful, blooms during the early season, and produces an abundance of blossoms and pollen. The fruit matures under the ecological conditions described during early June, with first picking on Jun. 1, 2007. The fruit is uniformly medium, in size, nearly black in skin color, clingstone in type, oblate in shape, full red in flesh color, firm and crisp in texture, and good in flavor.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of interspecific Prunus sp. tree, substantially as illustrated and described, that is similar to ‘YUMMY® gem’ (U.S. Plant Pat. No. 15,809) plum by being self-unfruitful, by blooming during the early season, and by producing fruit that is almost black in skin color, but is distinguished therefrom by producing fruit that is larger in size, oblate instead of globose in shape, and fully red in flesh color instead of yellow.
Read the full patent: US Plant Patent PP19537 in full — the complete specification, every figure, and the file history.