US Plant Patent PP16178

Mainestream Spring

Iris plant named ‘Mainestream Spring’

PUBLIC DOMAIN

Patent expired February 10, 2025. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on July 30, 2024. This patent earned 195 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP16178, the photograph of Mainestream Spring printed in the patent. — Figure 1 from US Plant Patent PP16178, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number: PP16178
Filed: July 30, 2004
Granted: January 3, 2006
Expires: February 10, 2025
Assignee: BETTS MARY S
Inventor: BETTS MARY S

Abstract

‘Mainestream Spring’ is an interspecific Iris hybrid that exhibits the unique characteristic of having spring foliage that emerges gold in color and is further characterized by its violet blue flowers borne on branched flower stems combined with a vigorous growth habit.

Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.

1. A new and distinct cultivar of Iris plant named ‘Mainestream Spring’ as herein illustrated and described.

Read the full patent: US Plant Patent PP16178 in full — the complete specification, every figure, and the file history.