US Plant Patent PP26541
IFG Twenty-one
Grapevine ‘IFG Twenty-one’
UNDER PATENT
Still under patent. Protection ends October 4, 2034.
Twenty years from the filing date would end on June 12, 2034. This patent earned 114 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26541
- Filed
- June 12, 2014
- Granted
- March 29, 2016
- Expires
- October 4, 2034
- Assignee
- CAIN DAVID, INTERNAT FRUIT GENETICS LLC
- Inventor
- CAIN DAVID
Abstract
This invention is a new and distinct grapevine variety denominated ‘IFG Twenty-one’. The new grapevine is characterized by producing small naturally seedless red berries having an elliptic shape with a unique combination of muscat and labrusca flavor. The strong fruity flavor is reminiscent of strawberries. Fruits normally ripen very early season about early to mid-July near Delano Calif. Fruits are fairly low in acidity, with medium dense, firm texture. Berries color readily even in hot climatic conditions and produce completely colored bright red berries.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed: 1. A new and distinct variety of grapevine as herein illustrated and described.
Read the full patent: US Plant Patent PP26541 in full — the complete specification, every figure, and the file history.