If that coffin design works that good, it’s a wonder the company went under after just a few years. It was supposed to allow bodies to be shipped in a sanitary manner. The missing detail: were the bodies embalmed or put in the casket in their natural condition? I’m planning on cremation for myself, but for those who want traditional burial, looking like you died a week ago after 150 years is quite an advertisement. The patent is long since expired. A seemingly “sure thing” for some business person to pick up and run with.
Too bad the soviets didn’t have this technology when they did Lenin’s tomb!
I have read that arsenic was used as an embalming chemical back then. It preserves the body very well.
Napoleon was buried without embalming on St Helena, and when he was dug up years later, he was still in perfect condition leading many to believe he was slowly poisoned.