US Plant Patent PP14237
Yummycrisp
Plum tree named ‘Yummycrisp’
PUBLIC DOMAIN
Patent expired November 21, 2022. 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
- PP14237
- Filed
- November 21, 2002
- Granted
- October 14, 2003
- Expires
- November 21, 2022
- Inventor
- BRADFORD LOWELL GLEN
Abstract
The present invention relates to a plum tree, Prunus salicina , and more particularly to a new and distinct variety broadly characterized by a large size, vigorous, hardy, heavy blooming, pollen abundant, self-unfruitful, and usually productive tree. The present variety requires cross pollinization from another early blooming plum, such as ‘Yummybeaut’ (U.S. Plant Pat. No. 13,478). The fruit matures under the ecological conditions described during late July, with first picking on Jul. 25, 2002, but will hang on the tree for nearly thirty more days. The fruit is uniformly medium in size, nearly black in skin color, clingstone in type, yellow with some pink bleeding in flesh color, very firm and crisp in texture, excellent in flavor, and holds well in cold storage for more than thirty days. The present variety was developed from an open pollinated seedling of an unnamed black plum.
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 plum tree, substantially as illustrated and described, that is most similar to ‘Friar’ (unpatented), by being self-unfruitful and by producing plums that are nearly black in skin color and that first mature in late July, but is distinguished therefrom and an improvement thereon by blooming at least one week earlier, by cross pollinating some other early blooming varieties, such as ‘Yummybeaut’ (U.S. Plant Pat. No. 13,478), and by producing plums that are smoother in skin surface, that are globose instead of oblate in shape, that acquire more red flesh color at maturity, that are crispier in texture, that are not as large in size, and that hang very firm on the tree much longer.
Read the full patent: US Plant Patent PP14237 in full — the complete specification, every figure, and the file history.