Dating british patent numbers


11-Feb-2020 07:41

This confirmed that a design had been registered and gave three year’s copyright protection.

The diamond contained enough information to allow identification from the official records held by the Patent Office.

By shifting the positions of the identifiers, a second series was started and lasted until 1883.

Other letters identified the day and month of registration, the material and bundle number. Small extracts can be used with acknowledgements to 'Oldcopper.org' website. Diamond Registration Marks (Lozenge Marks) Key to Diamond Registration Marks Design Registration Numbers Country of Origin Purchase Tax.



Or what it’s even worse: “We are the generation who doesn’t want a relationship but the problem is is that, at the end of the day, we actually do” – The Huffington Post.… continue reading »


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