👉 Prefloration is a legal term in the United States that refers to the process of filing an application for a patent before a patent office. It involves the applicant's request for permission from the patent office to extend the expiration date of their existing patent, which can be up to 20 years after the patent was granted. The prefloration process typically begins with the patent holder submitting a formal application to the patent office seeking approval for an extension of the term of their patent. The patent examiner