inexpirable

Inexpirable refers to something that does not expire or become invalid over time. This term is often used in legal, financial, and contractual contexts to describe agreements, licenses, or permissions that remain in effect indefinitely. For example, an inexpirable lease is a lease agreement that does not have a specified end date, allowing the tenant to remain in the property indefinitely. Similarly, an inexpirable license is a software license that does not have a time limit, meaning the user can continue to use the software without needing to renew the license. The term is also used in the context of patents, where an inexpirable patent is one that does not have a set expiration date, allowing the patent holder to maintain exclusive rights to the invention indefinitely. However, it is important to note that while the term "inexpirable" suggests a lack of expiration, all legal agreements and licenses are subject to termination under certain conditions, such as breach of contract or changes in law.