US Plant Patent PP20745
A-2640
Grape plant named ‘A-2640’
UNDER PATENT
Still under patent. Protection ends June 10, 2028.
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
- PP20745
- Filed
- June 10, 2008
- Granted
- February 9, 2010
- Expires
- June 10, 2028
- Assignee
- UNIV ARKANSAS
- Inventor
- CLARK JOHN REUBEN; MOORE JAMES NORMAN
Abstract
A grape cultivar particularly distinguished by large, seedless, black-skinned berries, large clusters, with a mid to late season of ripening, high productivity and good vine health, is disclosed.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of grape plant as shown and described herein.
Read the full patent: US Plant Patent PP20745 in full — the complete specification, every figure, and the file history.