Appeal No. 1998-0093 Application No. 08/459,301 food warming oven or cabinet for heating food, typically at least partly precooked food, from a chilled or frozen condition to a serving temperature, e.g., approximately 70EC" (p. 1, ll. 6-12). The examiner contends that "[i]t would have been obvious to one of ordinary skill in the art to adapt the insulated panels of Moffat et al to the food warmer of Huie et al to more efficiently warm food placed in the device" (Answer at 5) and that such a modification "would have been an obvious alternative where display of the contents was not necessary and merely efficient warming was desired (Answer at 7). While we agree that it would have been obvious to insulate Huie's cabinet walls with laminated insulating material in order to increase the oven's electrical efficiency, we are not persuaded of the obviousness of also replacing Huie's transparent doors with nontransparent, laminated, insulating and sealing doors, as proposed by the examiner. This modification, as appellant correctly observes, appears to be improperly based on knowledge of appellant's own specification and the requirements of claim 1. Accordingly, we are - 6 -Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007