The trademark name must be available for use in Pennsylvania. From trade mark registration and patent prosecution to copyright protection and IP rights enforcement, their lawyers adopt a commercial perspective.In Bangladesh a trademark application can be filed in 45 classes: Classes 1 to 34 for goods and classes 35 to 45 is for service marks. Trademarks are effective for a term of five years from the date of registration. Yes, a foreigner can register a trademark in the United States. This searchable database contains all recorded Patent Assignment information open to the public from August 1980 to the present. Immigration and Trademark Law Attorney. - Filing unregistered trademarks before a court of law after registration is now possible. J.D., Dickinson School of Law of Pennsylvania State University, 1980. The listings contain active patent practitioners with licenses to practice before the US Patent and Trademark Office.