Provisional Application

The provisional patent enables you to book your name against your invention even before it is final.

If there is a valuable invention, it is better to patent it as soon as possible and protect it from infringement. A patent is an ideal way to protect ideas. The provisional patent is an application that can be filed to maintain a patent-pending status. This status can only be sustained for 12 months. In that time, one can seek out manufacturers, sell goods or products, and additionally get the necessary prototypes developed for further upcoming applications.
Since the actual patent has to be filed before the end of 12 months, it is treated as having been applied for on the date that the provisional patent was filed. Moreover, if someone is trying a similar patent after your invention, you will still have patent protection. It is faster and more affordable and not as complicated to complete the application.
When is a provisional patent used?

The provisional patent can be used when an invention is fully definite, but will likely require further improvements that can be accomplished within a year, this provides a good chance to file a provisional patent application on the existing discovery.
An important thing is that it should be completed within a year so that the non-provisional can be filed with improvements during the pending provisional patent, prior to the subject of the original invention described in the provisional patent can be taken before it is terminated.