Slide 13 of 24
Notes:
When does the patent application have to be filed?
In the U.S. there is a 1 year grace period--you have 1 year from the time the invention is first disclosed to the public, offered for sale or used to make product offered for sale.
But watch out! In most foreign countries, patent rights are compromised the instant the invention is made publicly available.
It does NOT matter that someone cannot tell how it works from the disclosure--SO Watch those web postings!