When you say "exhibits" are you referring to the "specimens" that are provided along with a section 8 Declaration?
Generally speaking, if more than one class has been named, a trademark holder must submit a specimen for each class of goods/services for which the mark is registered.
If, for example, someone has a mark in class 9 and class 12 then at the 5 10 20 30 etc year marks he files a statement that the mark is in use in commerce for each class AND files a specimen as proof of same. For the example above, if the trademark owner is no longer using the mark in class 12 (for example) he drops that class and only renews for class 9.
But what if a trademark owner is only using the mark in class 9 and files a false declaration for class 12?
Well, one could file a petition for cancellation of the class 12 mark and if fraud is proven the mark will be canceled for ALL class 12 goods. But what about the class 9 goods? Perhaps.
see Medinol Ltd. v. Neuro Vasx Inc., 67 USPQ2d 1205 (TTAB 2003)
- Deletion of the goods upon which the mark has not yet been used does not remedy an alleged fraud upon the Office.
- If fraud can be shown in the procurement of a registration, the entire resulting registration is void.
- Note however: subsequent case law has clarified that each class in a multi-class registration is assessed independently]
- Intent – The appropriate inquiry is not into the registrant’s subjective intent, but rather into the objective manifestations of that intent. Knowledge that the mark was not in use on the goods, or reckless disregard for the truth, is all that is required to establish intent to commit fraud.
- The Medinol rule - if falsity is proven in the statement that the mark is not in use on all the goods listed in either a use-based application, a statement of use, or a §8 or §9 affidavit, then a finding of fraud could result. If fraud is found it requires cancellation of the whole registration. McCarthy, § 31:73
G&W Laboratories Inc. v. GW Pharma Ltd., 89 USPQ2d 1571 (TTAB 2009) Each class of goods or services in a multiple-class registration must be considered separately when reviewing the issue of fraud, and judgment on the ground of fraud as to one class does not in itself require cancellation of all classes in a registration.
So there is case law on both sides of the issue, but, generally speaking, 6 above applies. The final answer is fact specific as to what occurred during the registration process.
Please keep asking questions until you are satisfied with my answers.