US Plant Patent PP24597
Spark Plug
Carex plant name ‘Spark Plug’
UNDER PATENT
Still under patent. Protection ends January 29, 2033.
Twenty years from the filing date would end on September 19, 2032. This patent earned 132 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP24597
- Filed
- September 19, 2012
- Granted
- July 1, 2014
- Expires
- January 29, 2033
- Assignee
- TERRA NOVA NURSERIES INC
- Inventor
- KORLIPARA HARINI
Abstract
A new and distinct Carex phyllocephala plant characterized by variegated leaves with a dark center stripes and white to cream margins, small, multi-crowned, low mounding habit, and good vigor.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinct Carex phyllocephala plant as herein illustrated and described.
Read the full patent: US Plant Patent PP24597 in full — the complete specification, every figure, and the file history.