I found this information last week.
I found this on the University of Saskatchewan website:
How long does it take to get a patent?
The length of time that it takes to get a patent is highly variable, depending on the nature of the application and the country in which patent protection is being sought. However, the process is generally quite slow.
Currently, the average time from filing an application to receiving a granted patent in the United States is approximately 5-6 years .
The average time in the European Patent Office is approximately 3.5-4 years.
The U.S. Patent took 869 Days.
The next bit of data is for the IP.
From and including: Monday, December 12, 2011
To, but not including Wednesday, July 16, 2014
Result: 947 days
It is 947 days from the start date to todays date.
Or 2 years, 7 months, 4 days excluding the end date
