US Plant Patent PP22702
Synpin Henfirst
Aster plant named ‘Synpin Henfirst’
UNDER PATENT
Still under patent. Protection ends November 13, 2030.
Twenty years from the filing date would end on October 27, 2030. This patent earned 17 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP22702
- Filed
- October 27, 2010
- Granted
- May 1, 2012
- Expires
- November 13, 2030
- Assignee
- SYNGENTA CROP PROTECTION AG, SMITH MARK A
- Inventor
- SMITH MARK A
Abstract
A new Aster plant named ‘Synpin Henfirst’ particularly distinguished by the medium sized, long lasting, double-type inflorescences with purple-violet ray floret color, dark yellow-green foliage, upright, freely branched and rounded plant habit, and a natural season flowering in early September.
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 Aster plant named ‘Synpin Henfirst’ substantially as illustrated and described herein.
Read the full patent: US Plant Patent PP22702 in full — the complete specification, every figure, and the file history.