US Plant Patent PP28673
Klondike
Mint plant named ‘Klondike’
UNDER PATENT
Still under patent. Protection ends June 21, 2036.
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
- PP28673
- Filed
- June 21, 2016
- Granted
- November 21, 2017
- Expires
- June 21, 2036
- Assignee
- ESSEX LABORATORIES INC
- Inventor
- ROBERTS DONALD D
Abstract
Mint selection 13-A36-13, denominated ‘Klondike’ peppermint is a new Mentha sp. cultivar that produces a unique essential oil, improved yield of essential oil, and increased resistance to mint rust and wilt.
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 variety of peppermint plant, substantially as shown and described, characterized particularly by increased resistance to mint rust and wilt and producing a unique essential oil.
Read the full patent: US Plant Patent PP28673 in full — the complete specification, every figure, and the file history.