US Plant Patent PP13448
Sugratwenty
Grapevine cv. ‘Sugratwenty’
PUBLIC DOMAIN
Patent expired March 31, 2021. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on January 25, 2021. This patent earned 65 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP13448
- Filed
- January 25, 2001
- Granted
- January 7, 2003
- Expires
- March 31, 2021
- Assignee
- SUN WORLD INTERNATIONAL INC
- Inventor
- CAIN DAVID W
Abstract
A new and distinct grapevine variety characterized by extremely crisp, medium sized red seedless berries with an obovate shape. The variety is extremely productive when spur pruned, and produces very large, loose berry clusters.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct variety of grapevine cv. ‘Sugratwenty’ as herein illustrated and described.
Read the full patent: US Plant Patent PP13448 in full — the complete specification, every figure, and the file history.