MPEP Q&A 211: When May an Abandoned Application be Used as Prior Art? - a podcast by Lisa Parmley, USPTO Patent Practitioner #51006
from 2020-11-24T15:03:39
Question: When may an abandoned application be used as prior art? Answer: An abandoned patent application may become evidence of prior art only when it has been appropriately disclosed, as, for example, when the abandoned patent [application] is reference[d] in the disclosure of another patent, in a publication, or by voluntary disclosure under former Defensive Publication rule An abandoned patent application becomes available as prior art only as of the date the public gains access to it. However, the subject matter of an abandoned application, including both provisional and nonprovisional applications, referred to in a prior art U.S. patent or…
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