US Plant Patent PP25793
Summer Princess
Peach tree named ‘Summer Princess’
UNDER PATENT
Still under patent. Protection ends March 4, 2034.
Twenty years from the filing date would end on December 16, 2033. This patent earned 78 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25793
- Filed
- December 16, 2013
- Granted
- August 11, 2015
- Expires
- March 4, 2034
- Assignee
- BRADFORD LOWELL GLEN
- Inventor
- BRADFORD LOWELL GLEN
Abstract
The present invention relates to a new and distinct variety of peach tree, Prunus persica , broadly characterized by a large size, vigorous, hardy, self-fertile, productive and regular bearing tree. The variety blooms during the mid to late season and requires about 600 chilling hours. The fruit matures under the ecological conditions described in late August, with first picking on Aug. 25, 2013. The fruit is uniform, very large in size, acidic with traditional peach flavor, nearly globose in shape, clingstone in type, firm in texture, yellow in flesh color, virtually full red 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.
I claim: 1. A new and distinct variety of peach tree, substantially as illustrated and described, that is most similar to Red Princess (U.S. Plant patent application Ser. No. 13/694,608 filed Dec. 13, 2012) peach by requiring about 600 chilling hours, by blooming in the mid to late season, by being self-fruitful, by having large blossoms, and by producing yellow flesh clingstone peaches that are firm, nearly full red in skin color, globose in shape, and a good tasting flavor, but is distinguished therefrom by having a larger and more vigorous tree, by having globose instead of reniform glands, and by producing fruit that is somewhat larger in size, that has a bitter kernel instead of sweet, and that matures about seventy days later.
Read the full patent: US Plant Patent PP25793 in full — the complete specification, every figure, and the file history.