In Agile, you are supposed to ship product on a regular cadence. All features are added to a product backlog, divided into small projects that fit within a sprint, and then prioritized. The backlog is just a way to keep track of all of the ideas people have, requests from customers, major bugs and other things.
The first patent for Pristiq is set to expire in February 2022. This is the earliest predictable date that a generic version of the drug could become available. However, other circumstances could come up to extend or shorten the exclusivity period.
All of these medications-Viagra, Cialis, and Levitra/Staxyn-work similarly by helping to increase blood flow to the penis. They are in a class of drugs known as PDE5 inhibitors. Currently Levitra's patent is set to expire in 2018, and Cialis' patents expire between 2017 and 2020.Since Viagra's patent expiration is no longer an issue, the big question is how the patent extension will affect the marketplace.iagra's patent, originally scheduled to expire in late March of 2012, has been extended to April of 2020. That's good news for the manufacturer, Pfizer, Inc., of course, but it's also good news for patients suffering from Erectile Dysfunction.