So today's Picture of the Day is of the Westinghouse 1000 Laundromat machines... and at the bottom of the advertisement is the small print:
"Laundromat is a Westinghouse registered trademark"
What's the history on this term? How did it come to be that Westinghouse had a trademark for a machine, with the same name as what we know of as a location having self-service laundry facilities? Being in the same category (Laundry-related), I would have thought that one or the other usage would not have been permitted. ie: Westinghouse would have either vigorously fought any other use of the word "Laundromat" to protect their trademark, or Westinghouse would have not been granted the trademark at all due to an existing common usage.
Anyone happen to know the story?

"Laundromat is a Westinghouse registered trademark"
What's the history on this term? How did it come to be that Westinghouse had a trademark for a machine, with the same name as what we know of as a location having self-service laundry facilities? Being in the same category (Laundry-related), I would have thought that one or the other usage would not have been permitted. ie: Westinghouse would have either vigorously fought any other use of the word "Laundromat" to protect their trademark, or Westinghouse would have not been granted the trademark at all due to an existing common usage.
Anyone happen to know the story?
