Which of the following allegations is true? OThrough a patent, the government gives the inventor the right to exclude others from making, using or selling your invention from the day the patent is granted to a maximum of 20 years after the day you filed the patent. In exchange for a Patent, the inventor must provide a full description of the invention when he files a patent. Details of patent applications filed in Canada are disclosed to the public after an 18-month period of confidentiality. With a PCT as international patent application, you can seek patent protection for an invention simultaneously only in 3 countries (Canada, Europe, USA). Trade secrets are protected by common law. They can be registered at CIPO. They potentially last forever provided the information remains a secret. To be patentable, an invention must be: 1) first in the world; 2) functional and operative; 3) shows some ingenuity and not obvious to someone of average skill who works in the field of your invention, and; 4) the object should be patentable, such as mere scientific principle, an abstract theorem, mere discoveries of nature or mathematical formula. The author or a plan, sketch, drawing, graphic representation, or specification intended to govern the construction of a building is protected for 50 years