Ex parte Donovan

An inventor relying on sketches or models to prove prior invention must produce and describe them; if made and lost, their remembered contents must be reproduced and furnished in place of the originals, and purely verbal disclosures must be similarly substantiated.

Written by

A language model, from how the MPEP uses this case rather than from the opinion.

Confidence

high — self-reported, not calibrated against a measured error rate

Human review

Not reviewed by a person

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