BigGuy200, I received your message. I am sorry but I do not accept phone calls from posters and I do not respond privately to questions. For these reasons, I will try to address your questions here.
We request of all posters that they provide the name of their state or, if not in the US, the name of their country. Trademark laws are different in the US than they are in other countries.
That said, in all countries, it can be difficult to determine with certainty "how similar is too similar" when deciding on a name to identify your product or service. If a trademark holder believes your use of a mark infringes on their mark - whether it does or not - the trademark holder can send you a cease and desist letter, or the trademark holder can sue you for trademark infringement. At that point, it can be up to a court to decide if your trademark infringes on the rights of the other trademark holder.
Trademark law centers on consumer confusion. If a trademark confuses consumers, or is likely to confuse consumers, into thinking one company is the other company, the odds are pretty good that one mark infringes on the rights of the other. Consumer confusion is more likely when similar trademarks are used on similar goods and services, in the same geographic areas, and/or marketed to the same consumers. The similarity is not limited to how the trademark looks, either. How a trademark sounds when spoken can also lead to consumer confusion. For example, naming your cookie product OReeeOh would infringe on the Oreo cookie mark even though the spelling is different.
Although trademark searches are important to see if a trademark is already in use by another company, a trademark search is not infallible. Not all trademarks are federally registered and not all trademark-holders have an online presence. A trademark search, therefore, only reduces the chance that the mark you want to use as an identifier for your product or service does not infringe on the rights of another.
That is why it is generally best, and generally advised, that you create for your product or service identifier a name that is unique to you alone. This can be done by making up a word (like Kodak and Google did) or by combining too unrelated words (like Owl Ice did) or by using a common word in an uncommon way (like Arrow for shirts and Penguin for books).
I think I addressed your questions? If not, or if you have additional questions, you can add them to this thread.