US Plant Patent PP31574
Delft Teacups
Campanula plant named ‘Delft Teacups’
UNDER PATENT
Still under patent. Protection ends January 14, 2039.
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
- PP31574
- Filed
- January 14, 2019
- Granted
- March 17, 2020
- Expires
- January 14, 2039
- Assignee
- WALTERS GARDENS INC, HANSEN HANS A
- Inventor
- HANSEN HANS A
Abstract
The new and distinct bellflower plant, Campanula plant named ‘Delft Teacups’ with dense, compact, mounded habit; dark-green deltoid foliage and numerous bluish campanulate flowers with near white centers over a fourteen week period beginning in late spring. The new plant is suitable for landscaping as a specimen, en masse, or in containers.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. The new and distinct cultivar of Campanula plant named ‘Delft Teacups’ as described and illustrated.
Read the full patent: US Plant Patent PP31574 in full — the complete specification, every figure, and the file history.