Hi - thanks for looking me up again!
A common law trademark is one that has not been registered with the US Patent and Trademark Office. According to the USPTO, "federal registration is not required to establish rights in a trademark. Common law rights arise from actual use of a mark and may allow the common law user to successfully challenge a registration or
I don't know what the law is in South Africa, but in the United States, a common law trademark provides one all of the rights that a registered trademark does. All the registered trademark does is allows you to sue in federal court before judges that are familiar with these issues instead of being sued in a state court where the judge likely has no experience with trademarks.
Instead, the first in time is the first in right when it comes to trademarks. Also, you have to consider the name in addition to the font used, color of letters, etc.
As we discussed before, the botXXXXX XXXXXne is whether or not a consumer would confuse one site for the other. If you have different names for your business, then the likelihood of mistaking one for the other is not very great. Also, you can claim a common law trademark on your name.