In re Bastian

delivered tbe opinion of tbe Court:

Tbis appeal is from a decision of tbe Commissioner of Patents rejecting as unpatentable certain claims for electric lamps of tbe character known as vapor lamps, or vapor arc lamps.

Tbe rejection was based upon a British patent to appellants of 1903, which concededly contained tbe subject-matter of tbe appealed claims. A provisional application for tbe British patent was filed more than one year prior to tbe date of filing tbe present application, which, it was held, renders tbe British patent a bar to tbe granting of a patent on tbe appealed claims. U. S.…