In my case, we are filing for a trademark that was once owned by another company, to do the same thing they used to do. The difference is that the company in question has been out of business for fifteen years, and the trademark for their company name is listed as dead since 2003.
They have not been using the name in any way.
Hi,
As Jeff has pointed out, use is the key. A mark can be "dead" as to registration but still live as to use. You want to be as sure as you can that not only the former owners no longer are using the mark, but also that no unrelated intervening users have popped up to use the mark -- or a confusingly similar one -- in between times.
Would anyone from the old company be able to come and cancel our registration through the "senior rights" that are mentioned here?
Yes, a senior user who hadn't abandoned the mark could do that if a cancellation proceeding were begun within 5 years of the grant of registration.
The way to check whether or not a mark is still in use (or has been taken up by others) is through a trademark search that covers not only the federally registered marks, but also "common law" marks -- that is, unregistered marks.
The search should be done by someone who truly understands trademark law, because the parameters governing the analysis are relative ones, requiring frequent judgment calls. The standard for infringement is "likelihood of confusion". An identical mark on identical products is a no-brainer, but it takes knowledge of and experience in the law to advise how close is "too close" for comfort when the marks and/or the goods are not identical. In my experience, the average business attorney doesn't have that sort of knowledge; a trademark attorney is best.
If you're forced to do it on the cheap yourself, however, make sure you read up on what goes into a "likelihood of confusion" determination. Searching the USPTO trademark site and this forum will help. Also a lot of law firms have short pieces they've written up to help inform their clients. Searching "likelihood of confusion" in quotes in connection with "trademark" and/or "channels of trade" should get you some sites speaking to the subject. Remember to check that the sites are US based, as our law differs from others'.
Good luck.
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Incidentally, I'll mention an important caveat:
When it comes to the name of a business people often confuse "trade name" and "trademark." Your trade name is registered with your state as the name you do business under and it is entirely possible for the state to permit you to register a trade name which in fact will actually infringe someone else's trademark. Most trade names just have to be distinguishable enough for the post office to get the mail right when someone wants to sue you. Trademark law deals with branding, and the goal is to keep consumers from being confused as to the source of goods.