What is a specimen?

A specimen is real-world proof that you're actually using your mark to sell something — not a mockup, not a design file, but evidence of the mark as customers actually encounter it. USPTO requires one before it will register a mark based on actual use, and again later to keep the registration alive. A drawing of a logo you plan to use someday isn't a specimen; a photo of that logo on a product actually for sale is.

What counts, by type

• Goods (physical products): a photo of the mark on the product itself, on its packaging, or on a tag/label attached to it — not just on an invoice or a business card.
• Services: something that shows the mark being used in connection with rendering the service — a screenshot of a website advertising the service, a storefront sign, an ad — as long as it also makes clear what the service actually is.

The most common rejection

A "mere advertisement" for goods (as opposed to services) is the single most common reason a specimen gets rejected. For a physical product, USPTO wants to see the mark functioning as a trademark at the point of sale — on the product or its packaging — not just in a marketing flyer or a mockup. The line between "an ad" and "the product's actual packaging" is exactly where a lot of applicants get tripped up, and it's a distinction worth understanding before you submit one.

If you're not using it yet

You don't need a specimen to file at all — you can file based on a genuine intent to use the mark, and submit the specimen later once you're actually selling. That path has its own deadlines and its own extension process, but it exists precisely for brands that want to secure a filing date before launch.