According to the link shown below, the United States Patent and Trademark Office lists the expiration date as October 23, 2012.
http://www.fda.gov/OHRMS/DOCKETS/dailys/04/july04/071504/99e-1086-let00003-vol1.pdf
Humira has been on the market for eight years now, so it has about 12 years to go on it's initial patent.
According to the article in Smart Money linked below, the patent continues through December 2016.
The US patent number is US 7198789 B2.
When does the patent expire for abilify
No, once a patent expires the invention is public domain and can never be patented again.
2020
2019
May 2014.
April 2017.
2020
November 2021.
The patent expires in 2017. You don't have all that long to wait.
2018 in the U.S.