US Plant Patent PP15652
Sweetcot
Interspecific tree ‘Sweetcot’
PUBLIC DOMAIN
Patent expired March 12, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on December 29, 2023. This patent earned 74 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15652
- Filed
- December 29, 2003
- Granted
- March 15, 2005
- Expires
- March 12, 2024
- Inventor
- BRADFORD LOWELL GLEN
Abstract
The present interspecific variety is characterized by a medium size, vigorous, hardy, and productive tree that is self-unfruitful and can be pollinated by a late blooming apricot. The fruit matures under the ecological conditions description during the last week in June, with first picking on Jun. 22, 2003. The fruit if medium in size, dark purple in skin color with pubescence, clingstone in type, orange yellow in flesh color, very firm in texture, and very sweet in flavor. The variety was developed as a first generation cross using ‘Angeleno’ U.S. Plant Pat. No. 2,747) plum as the seed parent by an unknown pollen source containing some degree of apricot.
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 tree, substantially as illustrated and described, that is similar to its seed parent, ‘Angeleno’ (U.S. Plant Pat. No. 2,747) plum, by being self-unfruitful and by producing fruit that is globose in shape, firm in texture, and dark purple in skin color, but is distinguished therefrom by having apricot type leaves and blossoms and by producing fruit that has pubescent skin, that is orange yellow in flesh color, that is much sweeter in flavor, and that matures in late June rather than early September, or about twenty days earlier.
Read the full patent: US Plant Patent PP15652 in full — the complete specification, every figure, and the file history.