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A comment on Making and Selling a Stair-Climbing Dolly. Parent comment

Re:Making and Selling a Stair-Climbing Dolly by mbell on Wednesday December 26, 2018 @11:58AM (#18763128)
Patents are weird:

https://patents.google.com/patent/US3450219A/en

https://patents.google.com/patent/US10131374B1/en

EDIT: 1906 - https://patents.google.com/patent/US849270A/en

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Re:Making and Selling a Stair-Climbing Dolly by lexicality on Wednesday December 26, 2018 @12:06PM (#18763180)
Ah I see. The patent is for the exact way this cart folds, and then Mr Reznik is just very good at advertising.
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Re:Making and Selling a Stair-Climbing Dolly by jjeaff on Wednesday December 26, 2018 @01:02PM (#18763503)
I'm not even sure he's good at advertising. It's all very boilerplate style. Same type of promos you would see for countless other "as seen on TV" products. But he obviously has some hustle, grit, and maybe a bit of luck.
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Re:Making and Selling a Stair-Climbing Dolly by sitkack on Thursday December 27, 2018 @02:25AM (#18768038)
Innovation - "and not all innovations require an invention."

When I heard the phrase "stair climbing dolly" I immedietly thought of the three wheels on an axle design.

My first search found this from 2007, but 1906 is just as good.

https://www.researchgate.net/publication/221786654_Climbing_...

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