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To file patent, you have to have some prototype, but it actually cannot be in production for more than year (and does not have to be in production at all).
by mic47 7y ago
To file patent, you have to have some prototype, but it actually cannot be in production for more than year (and does not have to be in production at all).
- JoeAltmaier 7y agoIn US, requirement for a model dropped in 1880
- glbrew 7y agoYup.