I have another thread below on Walkman Patents and old magazine articles on personal cassette players, I thought it would be a good idea to split the threads and get some boombox information posted. Feel free to post freely! Panasonic Radio and Cassette Player It looks like a simple design patent from 1984 https://patents.google.com/patent/USD276908S/en?oq=USD276908S
This one is kind of interesting, a jukebox that records onto 8-track so the customer can take it with them. https://patents.google.com/patent/US3990710A/en?oq=US3990710A
I'm not sure who this Japanese Brand is but it's from 1975. https://patents.google.com/patent/US4070546A/en?oq=US4081850A
Could this be the very awesome AIWA CS-M1 stereo microcassette player, made by Olympus? https://patents.google.com/patent/US4388492A/en?oq=US4081850A
This is for Epicure Speakers but it's still neat. https://patents.google.com/patent/US4289929A/en?oq=US4289929A
Thanks for looking! Some of these young designers must have thought they had a million-dollar idea. Even back then it wasn't cheap to get a patent, it was expensive and there had to be a lot of research to make sure you weren't copying someone else. I think the normal length of time is 3-7 years and that may be why some of these seem to be a few years after the release. Make sure you check out the Google Page, there's a ton more information and pictures. You can look at the citations, inventor or company and maybe find some more worth posting.
An early auto-reverse patent for Toshiba, 1981. https://patents.google.com/patent/EP0129918A2/en?oq=EP0129918A2
It looks like Panasonic was researching a hinged tape cover for compact cassettes. https://patents.google.com/patent/US4740856A/en?oq=US4740856A)
TDK was also looking into the hinged cover but much earlier https://patents.google.com/patent/US4422599A/en?oq=US4740856A)
I love this kind of thing, very interesting and great to see what actually remained from the original patent once the product has been finalised. Thanks again for your research!
Reli do you know if the CRS-152 was the official Superscope/Marantz first boombox? I know the patent says 1976 but there's a several year delay getting the patent so the design could be from 1969 on. Even with the cheesy wood paneling it's kind of a neat Superscope, I've passed on a few over the years but I'll probably get one in the future.