Patent of the Day: Automatic Navigational Director
On this day in 1948 Robert E. Jasperson was granted the patent for Automatic Navigational Director. U.S. Patent No. 2,444,933. This invention…
Patent of the Day: Aerodrome
On this day in 1911 James Travis was granted the patent for Aerodrome. U.S. Patent No. 997,521. One object of this invention is to provide elevating…
Patent of the Day: Portable Hydraulic Press
On this day in 1851 Richard Dudgeon was granted the patent for Portable Hydraulic Press. U.S. Patent No. 8,203. This press is to the eye a simple…
Patent of the Day: Rocket Apparatus
On this day in 1914 Robert H. Goddard was granted the patent for Rocket Apparatus. U.S. Patent No. 1,102,653. This invention relates to a rocket…
Patent of the Day: Potato Picker
On this day in 1926 John H. Herald was granted the patent for Potato Picker. U.S. Patent No. 1,591,824. The object of this invention is the provision…
Patent of the Day: Electric Shaver with Vibratory Shaving Units
On this day in 1952, the patent application for Electric Shaver with Vibratory Shaving Units was filed. U.S. Patent No. 2,675,614.
Patent of the Day: Window Air Conditioner
On this day in 1954 Allen Trask was granted the patent for Window Air Conditioner. U.S. Patent No. 2,682,159. A principal object of this invention is…
Patent of the Day: Portable X-Ray Apparatus
On this day in 1926 Wilhelm Falkenberg was granted the patent for Portable X-Ray Apparatus. U.S. Patent No. 1,590,929. The object of this invention…
Patent of the Day: Hydrocarbon Furnace
On this day in 1905 George L. Bourne was granted the patent for Hydrocarbon Furnace. U.S. Patent No. 793,622. This invention relates to novel…
Patent of the Day: Machine for Printing and Embossing Checks
On this day in 1902 Frank H. Cottrill was granted the patent application for Machine for Printing and Embossing Checks. U.S. Patent No. 703,335. This…
Patent of the Day: Ice Rink Resurfacing Machine (Zamboni)
On this day in 1953, F.J. Zamboni was granted the patent for Ice Rink Resurfacing Machine. U.S. Patent No. 2,642,679.
Patent of the Day: Refrigerator
On this day in 1909 Alvin V. Rowe was granted the patent for Refrigerator. U.S. Patent No. 925,727.
Patent of the Day: Hydraulic Air Compressor
On this day in 1904 John Homer Alexander was granted the patent for Hydraulic Air Compressor. U.S. Patent No. 763.239. The object of this invention…
Patent of the Day: Grave Alarm
On this day in 1893 August Lindquist was granted the patent for Grave Alarm. U.S. Patent No. 500,072. This invention relates to improvements in grave…
Patent of the Day: Bi-Telephone
On this day in 1891 Ernest Jules Pierre was granted the patent for Bi-Telephone. U.S. Patent No. 454,138. This invention relates to an improvement in…
Patent of the Day: Mouse Trap
On this day in 1943 Henry Peterson was granted the patent for Mouse Trap. U.S. Patent No. 2,321,617. The object of this invention is to provide a…
Patent of the Day: Combination Shoulder and Lap Safety Belt (seat belt)
On this day in 1955 Roger W. Griswold II et al, were granted the patent for Combination Shoulder and Lap Safety Belts. U.S. Patent No. 2,710,649.…
Patent of the Day: Circuit Breaker and Closer for Alternating Currents
On this day in 1905 Andrew Gray was granted the patent for Circuit Breaker and Closers for Alternating Currents. U.S. Patent No. 792,020. This…
Patent of the Day: Method of Gravity Liquid Separation of Solids
On this day in 1913 Francis I. DuPont was granted the patent for Method of Gravity Liquid Separation of Solids. U.S. Patent No. 1,064,459. In this…
Patent of the Day: Job-Printing Press
On this day in 1903 Frank W. Pohl was granted the patent for Job-Printing Press. U.S. Patent No. 730,396. This invention relates to job-printing…