5 ms·
Patents are weird: https://patents.google.com/patent/US3450219A/en https://patents.google.com/patent/US3450219A/en https://patents.google.com/patent/US1013137
by mbell 8y ago
Patents are weird:
https://patents.google.com/patent/US3450219A/en https://patents.google.com/patent/US3450219A/en
https://patents.google.com/patent/US10131374B1/en https://patents.google.com/patent/US10131374B1/en
EDIT: 1906 - https://patents.google.com/patent/US849270A/en https://patents.google.com/patent/US849270A/en
- lexicality 8y agoAh I see. The patent is for the exact way this cart folds, and then Mr Reznik is just very good at advertising.
- jjeaff 8y agoI'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.
- sitkack 8y agoInnovation - "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_Robots https://www.researchgate.net/publication/221786654_Climbing_...