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A trademark is a sign, logo or design of some kind that distinguishes a particular product or service (or its provider or source) from others.

11 votes
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Are Donations Enough to Validate Trademark?

There must be a use in commerce Assuming there are no other barriers to trademark protection, you are asking what amounts to a "use in commerce" that is sufficient to warrant trademark protection (I'm … Techplosion, 261 F.3d 1188 (11th Cir. 2001)): announcement of a title ("Plasmer") to 13 million comic book readers and promotion at a trade conference was sufficient to establish trademark rights, even …
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1 vote
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Can mythological names be trademarked and become associated with an entity (eg. a company)?

For example, search the USPTO trademark database for "Deimos." See also "Lamborghini Trademark for 'Deimos' May Point to Future Model". …
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12 votes
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Is it trademark infringement to use a name registered for a product in an unrelated market?

The trademark registration you linked to is for use in "women's intimate apparel, namely bras, panties, garters and chemises." … See Trademark Basics: Scope of Protection. There are even other "Cassandra" marks registered: one for bean bag dolls one by Apache Software Foundation for database management software …
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15 votes

Can you make a logo very similar to an existing trademark?

If the defendant's use of the mark to identify goods or services causes a likelihood of confusion, it is trademark infringement (A&H Sportswear, Inc. v. …
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1 vote

Domain and subdomain ownership question regarding website names

how would a person go about researching if one is already an existing trademark One can search the trademark database in the relevant jurisdiction. could facebook.stackexchange.com exist? … https://mathematica.stackexchange.com (trademark) …
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1 vote
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When is a trademark/wordmark considered to be in use?

Section 4 says: 4(1) A trademark is deemed to be used in association with goods if, at the time of the transfer of the property in or possession of the goods, in the normal course of trade, it is marked … is deemed to be used in association with services if it is used or displayed in the performance or advertising of those services. (3) A trademark that is marked in Canada on goods or on the packages in …
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2 votes
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When a historical name is trademarked, will the trademark be considered 'weaker' than an inv...

Only slightly less. They would both generally be assessed to have a high distinctiveness. The use of an existing word or name in connection with goods or services unrelated to any existing meaning is …
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