genericides.org keeps a list of generic trademarks. We support the list with examples of "generic use" in newspapers worldwide. The entry below is such example.
Trump later displayed a Sharpie-altered forecast map in the Oval Office to defend his inaccurate tweet
Involved trademark
Involved news organisation
Date
Is the trademark here used in an expression?
No
In what news organisation did it appear?
The Washington Post
Url
