Trademark or not?

Just the other day, I was brainstorming and found a product just as popular as say... Google Nexus or Apple iPad and the domains that were available were:
buyproductname.com
productnamereviews.com
productnametips.com
productnamehacks.com

Each of these to me seem like they'd be worth something, especially if it's for a product so popular and with over 800,000 exact searches. I was surprised to see them available. Is it because they are possibly trademarked? Would it be stupid to reg them?

I looked this morning and they've just now all been reg'd.

Thanks!

Trademark can be checked on this site:

http://search.uspto.gov/search?utf8=...&commit=Search

thanks for the link but i've already had a look there. Yes, the "productname" is trademarked BUT is it ok if I were to purchase the domain if I add a prefix or suffix such as the 4 i listed above? Especially if I do not develop the site (just for flipping). Or would it be ok for me to build the site into a review site for that product?

cdnbigd said:

thanks for the link but i've already had a look there. Yes, the "productname" is trademarked BUT is it ok if I were to purchase the domain if I add a prefix or suffix such as the 4 i listed above? Especially if I do not develop the site (just for flipping). Or would it be ok for me to build the site into a review site for that product?

Click to expand...

Prefix or suffix would be a violation too. I guess, It can be taken down any moment by being reporting to your hosting company.

cdnbigd said:

thanks for the link but i've already had a look there. Yes, the "productname" is trademarked BUT is it ok if I were to purchase the domain if I add a prefix or suffix such as the 4 i listed above? Especially if I do not develop the site (just for flipping). Or would it be ok for me to build the site into a review site for that product?

Click to expand...

It is still trademarked and they can pursue full legal action, regardless of what else you include in the domain name.

That doesn't mean you can't register them, though. Most trademark holders don't bother you, especially if you're only being positive towards their business.

cdnbigd said:

thanks for the link but i've already had a look there. Yes, the "productname" is trademarked BUT is it ok if I were to purchase the domain if I add a prefix or suffix such as the 4 i listed above? Especially if I do not develop the site (just for flipping). Or would it be ok for me to build the site into a review site for that product?

Click to expand...

Your brainstorming seems to have killed your brain. Tell me, why would the trademark be there in the first place if the company itself holds the exact match of the domain?