US Plant Patent PP19246

Chisago

Grapevine-“‘Chisago’”

PUBLIC DOMAIN

Patent expired August 17, 2026. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on December 16, 2025. This patent earned 244 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP19246, the photograph of Chisago printed in the patent. — Figure 1 from US Plant Patent PP19246, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number: PP19246
Filed: December 16, 2005
Granted: September 16, 2008
Expires: August 17, 2026
Assignee: WINEHAVEN INC
Inventor: PETERSON KEVIN; PETERSON KYLE

Abstract

The invention is a new and distinct variety of grapevine designated ‘Chisago’, which has a combination of outstanding wine quality, vigor, disease resistance, and cold hardiness.

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 designated ‘Chisago’ as illustrated and described herein.

Read the full patent: US Plant Patent PP19246 in full — the complete specification, every figure, and the file history.