I srsly doubt that the Pillsbury box design is still under patent, because it’s been used in hundreds or even thousands of products I’ve opened over a span of decades - for example, pretty much every breakfast cereal box works that way. Two main flaps, two little tabs under them at the ends. The store-brand box is something I’ve never even seen before. Could be that it’s designed to be opened along one side, with the “front” of the box opening as a lid. Then the structure would actually make sense. I dunno, next time I make pie I’ll have a closer look.
I don’t know what I was thinking when I read your original comment, but I thought you meant the ones that come in the tubes. Guess I was half asleep. The extra tabs on the corners sound like they might be for structural support so that they don’t get crushed as much when shipping or so that the box they come in can be weaker. I know plenty of the ones with the basic glued design open up on their own when weight is put on it.
I srsly doubt that the Pillsbury box design is still under patent, because it’s been used in hundreds or even thousands of products I’ve opened over a span of decades - for example, pretty much every breakfast cereal box works that way. Two main flaps, two little tabs under them at the ends. The store-brand box is something I’ve never even seen before. Could be that it’s designed to be opened along one side, with the “front” of the box opening as a lid. Then the structure would actually make sense. I dunno, next time I make pie I’ll have a closer look.
I don’t know what I was thinking when I read your original comment, but I thought you meant the ones that come in the tubes. Guess I was half asleep. The extra tabs on the corners sound like they might be for structural support so that they don’t get crushed as much when shipping or so that the box they come in can be weaker. I know plenty of the ones with the basic glued design open up on their own when weight is put on it.