How does In re Casey relate to material worked upon in patent claims?
In re Casey is another significant case discussed in MPEP 2115 that relates to material worked upon in patent claims. The MPEP summarizes the case as follows: In In re Casey, 370 F.2d 576, 152 USPQ 235 (CCPA 1967), an apparatus claim recited “[a] taping machine comprising a supporting structure, a brush attached to said…
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