Owen J. Roberts

“ Accepting the view that to bond two articles can signify no more than to unite them firmly by any means, we find in the prior art the bonding of container and casing by mechanical means and by the use of cement and plaster of paris. ”

“ Invention cannot inhere in Blair's employment of either mode of union. The claim says nothing about the sealing effect of the bond, but if interpretation of the claim by reference to the specification might supply this element, the prior art shows instances of such sealing by the use of an impervious binding material such as cement, and earlier patents claim this sealing as an element of the invention described.
In short, anyone familiar with the prior art needed only by exercise of mechanical skill to combine known methods and structures and so attain the combination exhibited in the patent. ”

“ In 1919 Blair filed application for a patent for a heat insulated receptacle of the non-vacuum type, his object being economically to produce relatively large receptacles which would be sanitary and easy to clean, to improve their insulation to minimize the transmission of shocks to the inner container which was of glass or other fragile substance. ”