US Plant Patent PP18705
Plumgiant I
Plum tree named ‘Plumgiant I’
UNDER PATENT
Still under patent. Protection ends December 7, 2026.
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
- PP18705
- Filed
- December 7, 2006
- Granted
- April 1, 2008
- Expires
- December 7, 2026
- Assignee
- BRADFORD LOWELL GLEN
- Inventor
- BRADFORD LOWELL GLEN
Abstract
The present invention relates to a plum tree and more particularly to a new and distinct variety broadly characterized by a medium size, vigorous, hardy, and productive tree that is self-unfruitful and requires cross-pollination. The fruit matures under the ecological conditions described during early August, with first picking on Aug. 3, 2006. The fruit is uniformly giant in size, almost black in skin color, clingstone in type, nearly globose in shape, very light yellow to white in flesh color, firm in texture, and very sweet 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 plum tree, substantially as illustrated and described, that is most similar to ‘August Yummy’ (U.S. Plant Pat. No. 14,247) plum by being self-unfruitful and by producing fruit that matures in August, that is sweet in flavor, and that is clingstone in type, but is distinguished therefrom by producing fruit that is very light yellow to white in flesh color, almost black in skin color, larger in size, and matures about seven days earlier.
Read the full patent: US Plant Patent PP18705 in full — the complete specification, every figure, and the file history.