US Plant Patent PP12736
Dottie
Calathea plant named ‘Dottie’
PUBLIC DOMAIN
Patent expired November 1, 2020. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on September 6, 2020. This patent earned 56 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP12736
- Filed
- September 6, 2000
- Granted
- July 2, 2002
- Expires
- November 1, 2020
- Assignee
- TWYFORD PLANT LAB INC
- Inventor
- LAMB ANNE E
Abstract
A Calathea plant named ‘Dottie’ having nearly black green round leaves marked with vivid pink. The pink markings on the leaves do not fade as the plant matures.
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 cultivar of Calathea plant named ‘Dottie’, as illustrated and described.
Read the full patent: US Plant Patent PP12736 in full — the complete specification, every figure, and the file history.