US Plant Patent PP24439
IFG Four
Grapevine ‘IFG Four’
UNDER PATENT
Still under patent. Protection ends June 22, 2031.
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
- PP24439
- Filed
- June 22, 2011
- Granted
- May 13, 2014
- Expires
- June 22, 2031
- Assignee
- CAIN DAVID, INTERNAT FRUIT GENETICS LLC
- Inventor
- CAIN DAVID
Abstract
A new and distinct grapevine variety denominated ‘IFG Four’ is characterized by producing large, very crisp, dark red, uniform berries with high sugar content borne on medium to large size clusters. The fruit ripen and are commercially harvestable from mid to late August.
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 PP24439 in full — the complete specification, every figure, and the file history.