US Plant Patent PP27491
Polaris
Coreopsis plant named ‘Polaris’
UNDER PATENT
Still under patent. Protection ends March 16, 2035.
Twenty years from the filing date would end on July 16, 2034. This patent earned 243 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP27491
- Filed
- July 16, 2014
- Granted
- December 20, 2016
- Expires
- March 16, 2035
- Assignee
- PROBST DARRELL R
- Inventor
- PROBST DARRELL R
Abstract
A new cultivar of hybrid Coreopsis named ‘Polaris’ that is characterized its compact plant habit reaching 37.5 to 45 cm in height and an average of 37.5 cm in spread, its prolific blooming habit from mid June until frost in Connecticut, its large inflorescences with ray florets that are are solid white in color with no eye zone (even under cool growing conditions), its relatively sterile inflorescences when grown under typical garden conditions that do not require deadheading of spent blooms for continuous bloom, and its reliably perennial habit in U.S.D.A. Zone 5.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct cultivar of Coreopsis plant named ‘Polaris’ as herein illustrated and described.
Read the full patent: US Plant Patent PP27491 in full — the complete specification, every figure, and the file history.