US Plant Patent PP20753
Sheegene-4
Grapevine plant named ‘Sheegene-4’
UNDER PATENT
Still under patent. Protection ends April 11, 2027.
Twenty years from the filing date would end on November 8, 2026. This patent earned 154 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP20753
- Filed
- November 8, 2006
- Granted
- February 16, 2010
- Expires
- April 11, 2027
- Assignee
- SHEEHAN TIMOTHY P
- Inventor
- SHEEHAN TIMOTHY P
Abstract
A new and distinct variety characterized by a large green nearly-seedless grape with excellent flavor that ripens in the second week of September approximately eight weeks later than the ‘Thompson Seedless’ Grape (unpatented). The berries of this new variety are produced on strong woody stems and branches and are very well adapted to commercial harvesting.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of grapevine as herein illustrated and described.
Read the full patent: US Plant Patent PP20753 in full — the complete specification, every figure, and the file history.