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 apparatus and particularly to a form of such apparatus…
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 of an apparatus for picking up potatoes after the…
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 a cabinet constructed as a cantilever structure…
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 is a portable electric medical hand apparatus, in…
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 improvements in furnaces of the class in which crude…
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 invention has for its object to provide a machine…
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 is to provide an improved apparatus for compressing…
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 alarms, whereby persons who are prematurely…
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 telephone-receivers, and has for its objects,…