US Plant Patent PP93
Grandiflora
Gardenia plant
PUBLIC DOMAIN
Patent expired April 17, 1951. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on February 15, 1952, but this patent ends 304 days earlier — a terminal disclaimer gives term back. A source that calculates twenty years from filing would tell you this plant is still protected when it is already free.
The record
- Patent number
- PP93
- Filed
- February 15, 1932
- Granted
- April 17, 1934
- Expires
- April 17, 1951
- Assignee
- LENK WALTER E
- Inventor
- LENK WALTER E
Read the full patent: US Plant Patent PP93 in full — the complete specification, every figure, and the file history.