- UNITED STATES COURT OF APPEALS FOR THE EIGHTH CIRCUIT
- Argued October 14, 1965. Decided February 21, 1966
Petitioner: Graham - sues John Deere for patent infringement
Device: designed to absorb shock from plow shanks in rocky soil to prevent damage to the plow
- 1955 - 5th circuit says valid - "old result in a cheaper and otherwise more advantageous way."
- 1966 - 8th circuit says invalid - no new result in the combination
Held: The patents do not meet the test of the "nonobvious" nature of the "subject matter sought to be patented" to a person having ordinary skill in the pertinent art, set forth in 103 of the Patent Act of 1952, and are therefore invalid