Among the most common questions trademark attorneys are asked is what the differences are between the symbols®,TM, andSM. When should such symbols should be
Proper Notice of Trademark Rights: Using Trademark Symbols for Three-Dimensional Packaging and Product Designs
Among the most common questions trademark attorneys are asked is what the differences are between the symbols ®, TM, and SM. When should such symbols should be used? Where should they appear? How frequently? Do they even need to be used at all?

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