What Does Priority Date Mean?

When it comes to trademark registration, the concept of priority date is critical. This date determines when your trademark rights began and can affect your ability to enforce those rights against potential infringers. In this blog post, we’ll explain what the priority date is, how it works, and why it’s important.

closeup of the time and date on a laptop

When it comes to trademark registration, the concept of priority date is critical. This date determines when your trademark rights began and can affect your ability to enforce those rights against potential infringers. In this blog post, we’ll explain what the priority date is, how it works, and why it’s important.

What is a Priority Date?

A priority date is the date that the United States Patent and Trademark Office (USPTO) recognizes as the date of first use of a trademark in commerce. This date establishes the applicant's priority over subsequent trademark applications. In other words, whoever can prove that they were using the trademark first in commerce will have priority over anyone who uses the same or similar trademark later.

Why is a Priority Date Important?

The priority date is crucial because trademark rights are based on use in commerce. Therefore, the party who can demonstrate the earliest use of a mark in commerce generally has priority over subsequent users. This means that if two parties have conflicting rights to the same or similar mark, the party with the earlier priority date will have the stronger legal position.

How is a Priority Date Determined?

The priority date is established through the trademark application process. When you file a trademark application with the USPTO, you must indicate the date of first use of the trademark in commerce. This date is the priority date for your trademark. However, it's important to note that the priority date for a trademark can also be established by the date of the first use of the mark in interstate commerce. This means that if you use your trademark in multiple states, the date of first use in any of those states can be used to establish priority.

What Happens if You Don’t Have a Priority Date?

If you don't have a priority date, it can be difficult to prove that you were the first to use the trademark in commerce. This can make it challenging to enforce your trademark rights if someone else starts using a similar mark. In some cases, you may be able to rely on common law trademark rights to establish priority, but this can be a complex legal process that requires substantial evidence of use.

Conclusion

In conclusion, a priority date is the date of first use of a trademark in commerce that establishes the applicant's priority over subsequent trademark applications. It's essential to determine and establish a priority date for your trademark to protect your brand and avoid potential legal disputes. If you're unsure about how to establish a priority date or have questions about trademark registration, it's always best to consult with a qualified trademark attorney who can provide guidance and advice.

Have questions? Contact us to learn more about trademark registration or how we can help you with your trademarks.