When does my injunction relief take effect? A Practice Note addressing the process of applying for preliminary injunctive relief in the Court of Common Pleas of Allegheny County, Pennsylvania.No case will be assigned to the Center without an order of court. A checklist of practical steps for obtaining a preliminary injunction in the Court of Common Pleas of Allegheny County, Pennsylvania. You will need one copy of the civil complaint with original signature for the magisterial district judge. Original process shall be served within the Commonwealth within 30 days after the issuance of the writ or the filing of the complaint. The first step to seek injunctive relief is to file your lawsuit in the appropriate county. Consult the rules and caselaw that govern in the court where you are filing the pleading. Purdue informed and instructed doctors that OxyContin provided 12 hours of relief when Purdue knew that, for many patients, it did not. This Agreement will then be filed as part of.