US Plant Patent PP29936
IFG Thirty-one
Grapevine named ‘IFG Thirty-one’
UNDER PATENT
Still under patent. Protection ends November 28, 2037.
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
- PP29936
- Filed
- November 28, 2017
- Granted
- December 4, 2018
- Expires
- November 28, 2037
- Assignee
- CAIN DAVID, INT FRUIT GENETICS LLC
- Inventor
- CAIN DAVID
Abstract
This invention is a new and distinct grapevine variety denominated ‘IFG Thirty-one’. The new grapevine ‘IFG Thirty-one’ is characterized by producing small seedless, purple-black berries having a narrow ellipsoid shape with a unique strong fruity labrusca flavor reminiscent of artificial grape flavor. Fruits normally ripen early to mid-season about late July to early August near Delano Calif.
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 PP29936 in full — the complete specification, every figure, and the file history.