Skip to content
The Patent Garden

US Plant Patent PP30210

Plumsweet XXI

Plum tree named ‘Plumsweet XXI’

UNDER PATENT

Still under patent. Protection ends December 26, 2037.

No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

Figure 1 of US plant patent PP30210, the photograph of Plumsweet XXI printed in the patent.
Figure 1 from US Plant Patent PP30210, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number
PP30210
Filed
December 26, 2017
Granted
February 19, 2019
Expires
December 26, 2037
Assignee
BRADFORD LOWELL GLEN, QUISENBERRY JON M
Inventor
BRADFORD LOWELL GLEN; QUISENBERRY JON M

Abstract

The present invention relates to a plum tree and more particularly to a new and distinct variety broadly characterized by a small size, medium vigorous, hardy, and very productive tree. Being self-unfruitful, the present variety requires cross pollination from an apricot, interspecific, or plum that blooms during the late season, such as ‘Plumred VII’ interspecific tree (U.S. Plant Pat. No. 23,688). The present variety produces a heavy amount of bloom with a moderate amount of pollen to entice good bee activity to facilitate pollination. The fruit matures under the ecological conditions described during the last part of September, with first picking on Sep. 25, 2017, and will hang on the tree an additional thirty days. The fruit is uniformly medium in size, dark purplish red in skin color, dark red in flesh color, clingstone in type, mostly ovate in shape, firm in texture, very sweet, and outstanding in flavor.

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 plum tree, Prunus salicina , substantially as illustrated and described, that is most similar to ‘Blackred XXI’ plum tree (U.S. Plant Pat. No. 28,441) by being self-unfruitful, by blooming in the late season, and by producing fruit that is clingstone in type, medium in size, firm, juicy, and very sweet, but is distinguished therefrom by having a smaller size tree and by producing fruit that is darker red in flesh color, that is mostly dark red instead of black in skin color, that is ovate instead of oblate in shape, and that matures about thirty days later.

Read the full patent: US Plant Patent PP30210 in full — the complete specification, every figure, and the file history.