US Plant Patent PP26845
20123-29D
Calendula plant named ‘20123-29D’
UNDER PATENT
Still under patent. Protection ends January 17, 2035.
Twenty years from the filing date would end on September 29, 2034. This patent earned 110 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26845
- Filed
- September 29, 2014
- Granted
- June 21, 2016
- Expires
- January 17, 2035
- Assignee
- NISHIKAWA KOICHIRO
- Inventor
- NISHIKAWA KOICHIRO
Abstract
A new cultivar of Calendula plant, ‘20123-29D’, that is characterized by its compact plant habit with strong stems and thick leaves, its inflorescences with double ray florets that are bright yellow-orange in color, its long flowering time; blooming for 9 months from spring into winter in Noordwijkerhout, The Netherlands, its very high tolerance to powdery mildew, its very high tolerance to heat and cold, withstanding temperatures below −20° C. in the winter and its ability to be readily propagated by stem cuttings.
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 variety of Calendula plant named ‘20123-29D’ as described and illustrated herein.
Read the full patent: US Plant Patent PP26845 in full — the complete specification, every figure, and the file history.