US Plant Patent PP16678
Masbolimket
Boltonia plant named ‘Masbolimket’
PUBLIC DOMAIN
Patent expired March 24, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on December 20, 2024. This patent earned 94 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16678
- Filed
- December 20, 2004
- Granted
- June 20, 2006
- Expires
- March 24, 2025
- Assignee
- UNIV MASSACHUSETTS
- Inventor
- BOYLE THOMAS H
Abstract
A new and distinct cultivar of Boltonia plant named ‘Masbolimket’ characterized by its single inflorescence form, violet-colored ray florets, yellow-colored disc florets, dark green-colored foliage, freely branching character, and medium upright growth habit.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of Boltonia plant named ‘Masbolimket’, substantially as herein shown and described.
Read the full patent: US Plant Patent PP16678 in full — the complete specification, every figure, and the file history.