US Plant Patent PP20584
Mnstamepa
Caesalpinia plant named ‘Mnstamepa’
UNDER PATENT
Still under patent. Protection ends January 28, 2028.
Twenty years from the filing date would end on November 29, 2027. This patent earned 60 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP20584
- Filed
- November 29, 2007
- Granted
- December 15, 2009
- Expires
- January 28, 2028
- Assignee
- CAMELOT NURSERIES INC
- Inventor
- GASS RONALD E
Abstract
A new and distinct hybrid of the genus Caesalpinia is provided. This hybrid has been named ‘Mnstamepa’ for a cultivar name and is trademarked as Sierra Sun™. The new variety is a product of a cross between Caesalpinia mexicana and Caesalpinia palmeri which occurred in the year 1996. The Genus/species designation for the plant is Caesalpinia mexicana×palmer. The new variety was selected because it displays a uniquely different flower color previously unavailable in the genus, and a more open less twiggy habit with a finer leaf structure that either of its parents.
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 Caesalpinia plant as herein illustrated and described.
Read the full patent: US Plant Patent PP20584 in full — the complete specification, every figure, and the file history.