Question for my readers: Patent Drawings & Patent Attorney Names

December 15, 2006 on 6:00 am | In Patent Searching |

Someone asked me a question the other day I didn’t know the answer to…I’ll pose it to my readers:

Q.  Older patent drawings tend to include the inventor’s/patent attorney’s signature thereon.  Why and when did this practice stop?
Drawing_signature

Anyone have the answer to this piece of patent practice history?

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2 Comments

  1. In India, this is still a practice.

    Inventors have to put there signatures on every sheet of drawings.

    Comment by chakshukalra — December 16, 2006 #

  2. It’s a bit before my time, but the change seems to correspond to the change from the old patent format (with a full-page drawing on the first page) to the newer version with the bibliographic information on the top of the first page and a reduced representative figure underneath. That happened around 1971, and I think it also represented the introduction of computer typesetting - those patents in the “new” format without signatures are on the USPTO database in full-text, those with signatures are not.

    Comment by Mike Brown — December 18, 2006 #

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