A trademark is any unique expression related to a product or service that distinguishes it from other. It can be a brand name, logo, slogan, even a sound or smell. It can be bought, sold, transferred or renewed.
A copyright is an exclusive right granted to an author over his/her work. Any audio/visual work can be copyrighted, from books, music, graphic design and movies to photographs, choreography, website design and even software code.
Within three days of submitting an application, you can use the TM symbol alongside your brand name. This will ensure that no other business can register the same or similar brand name.
Before you go ahead and apply for a patent, it is sensible to check if the patent has been granted to another person or entity. For this, a patent attorney would need to go through the entire patent database.