US Plant Patent PP15034
Sumden 01
Calendula plant named ‘Sumden 01’
PUBLIC DOMAIN
Patent expired September 6, 2023. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on August 13, 2023. This patent earned 24 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15034
- Filed
- August 13, 2003
- Granted
- July 27, 2004
- Expires
- September 6, 2023
- Assignee
- SCHRADER RALF
- Inventor
- SCHRAEDER RALF
Abstract
A new and distinct Calendula plant having a compact habit, large flowers and dark colored leaves.
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 Calendula plant, substantially as shown and described.
Read the full patent: US Plant Patent PP15034 in full — the complete specification, every figure, and the file history.