It's important that you installed the correct opener for the type of door that you have, as some openers are more qualified to lift heavy door varieties than others. By making sure you have a good match, you can keep the cost to repair a garage door opener down from the beginning.
National Phase: after the end of the PCT procedure, usually at 30 months from the earliest filing date of your initial application, from which you claim priority, you start to pursue the grant of your patents directly before the national (or regional) patent Offices of the countries in which you want to obtain them.
For example, the pre-AIA 35 U.S.C. 102(e) prior art date of a U.S. patent issued from a nonprovisional application claiming the benefit of a prior provisional application (35 U.S.C. 111(b)) is the filing date of the provisional application for subject matter that is disclosed in the provisional application. X-Series.