coke and marijuana and ice
A trademark is protected for life as long as it is still in use.
Trademark yes copyright no.
Aquacoir is protected by patent and trademark, not copyright. The trademark is registered to OMS Investments.
Trademark Office. However, registration is not required for protection.
Generally the chemical formula will be protected by patent, and the name and/or logo will be protected as a trademark.
Brand names are protected by trademark law, not patent law.
Yes; logos and slogans are also protected by trademark law.
It is, almost certainly, registered as a trademark.
Yes; even if it weren't registered (which it is), it would be protected by common law.
No. You could copyright a drawing or photograph of the logo but the logo itself would have to be protected as a trademark.
No. It is not copyrightable in that form, and the Tolkien Estate did not trademark it. Therefore anyone is free to use the word, and indeed it does appear in many other sources.
No; logos are protected by trademark law.