WHITAKER, Judge.
Plaintiff sues for reasonable and entire compensation for the unauthorized use of its patent by the United States. Plaintiff is the assignee of Daniel Mapes, patentee under United States Patent No. 2,521,526 issued September 30, 1950.
The only issue now before us is the validity of plaintiff's patent. If it is valid, there can be no doubt that defendant infringed it.
Plaintiff's patent is on a charge for a carbon dioxide container...
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