Each patent has a number of dates that can impact a patent’s role in a Study.
For the Study patent, the dates dictate the timeframe of the Study and the range of dates that are available as prior art.
These dates are a handy reference that you may find useful for figuring out when an item was first produced.
For example, if you find something with a patent number of 1,941,448 on it, you will find in the chart below that it was patented in 1933.
January 14, 2015 - Introduction The term “biometrics” is derived from the Greek words “bio” (life) and “metrics” (to measure).
Thus, even though a patent has not yet been granted on a patent application, the latter becomes available for public inspection a year and a half from the date the patent application was filed.The United States patent number for each year is the first patent issued that calendar year.A patent date is when something was patented, not when it was actually made, many items were manufactured for many years after it the patent was granted.The filing date issued by the USPTO on a patent application is of critical importance to an inventor or patent owner because it determines who has priority over the right to file a patent application for an invention.For example, many European countries, and more recently, the US, have first-to-file patent systems.