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The rejected tag is used on patent applications and patents which have been successfully narrowed or rejected by the USPTO after having been the subject of a prior-art-request on Ask Patents.

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Is a rejected patent application considered prior art under "first to file"?

Let's say Company A's patent application is rejected due to prior art, a public disclosure from Company B (made within Company B's 1 year grace period). … Would Company B's very similar patent application, filed just after Company A, be rejected due to Company A's rejected, published patent application being considered prior art? …
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Is a rejected patent application considered prior art under "first to file"?

been publicly disclosed by the inventor or a joint inventor or another who obtained the subject matter disclosed directly or indirectly from the inventor or a joint inventor;" Update #1: I now know a rejected
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