US Plant Patent PP30177
DUP-STR
Hibiscus plant named ‘DUP-STR’
UNDER PATENT
Still under patent. Protection ends March 11, 2037.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP30177
- Filed
- March 11, 2017
- Granted
- February 5, 2019
- Expires
- March 11, 2037
- Assignee
- DUPONT SR ROBERT JAMES, DupontNursery Inc
- Inventor
- DUPONT SR ROBERT JAMES
Abstract
A new and distinct cultivar of hibiscus plant named ‘DUP-STR’, characterized by glossy, dark green leaves, upright growth, and a large flower characterized by a large glossy dark red eye which extends approximately one third of petal length, the eye abruptly shading into a strong orange zone extending to the petal edge. Veins are white radiating out of the eye, becoming yellow orange at about petal midpoint, radiating to a ruffled petal edge.
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 hibiscus plant named ‘DUP-STR’, either grafted or on its own roots, as illustrated and described.
Read the full patent: US Plant Patent PP30177 in full — the complete specification, every figure, and the file history.