Tradedress- Packaging, product, design all is the same (Taco bell wrapper. bags, cups, sauce packets)
Trademark- Any word, name, symbol, or device used to identify goods or services (Names- coca-cola, snickers)(Symbols: golden arches) Secondary meaning- "Make me a xerox"
Trade name- A name used to identify a business of occupation (ex. Hasboro Toys- There cannot be a Hasboro porn company)
Service Mark- Same as a trademark but applies to a service (ex. Holiday Inn)