On March 24, 1891, Toothpick was patented by Charles C. Freeman. The toothpick is the oldest instrument for dental cleaning. It is known to predate…
Tag: TDIH
This Day in Patent History - March 23 is celebrated as Family Day in South Africa, and in some regions of Canada, US, Vietnam, Australia and Thailand
March 23 is celebrated as Family Day in South Africa, and in some regions of Canada, US, Vietnam, Australia and Thailand. This patent application provides…
This Day in Patent History - On March 22, 1960, Schawlow and Townes were issued a patent for the laser
ESO Very Large Telescope (VLT) atop Cerro Paranal, a 2600-metre high mountain, located some 120 km south from Antofagasta, in the Atacama Desert of Chile.…
This Day in Patent History - On March 21, 1861, Constitution of the Confederate States of America established a Patent Office
On March 21, 1861, Constitution of the Confederate States of America established a Patent Office. The Confederate Patent Office was the agency of the Confederate…
This Day in Patent History - On March 20, 1883, Jan Matzeliger was issued patent for a "lasting device for shoes"
On March 20, 1883, Jan Matzeliger was issued patent for a “lasting device for shoes”. This invention made the mass production of inexpensive shoes possible.…
This Day in Patent History - On March 19, 1850, Phineas Quimby was issued a patent for a machine for Steering Ships and Steamboats
On March 19, 1850, Phineas Quimby was issued a patent for a machine for Steering Ships and Steamboats. Quimby was a watch and clockmaker…
This Day in Patent History - On March 18, 1947, Quinlan Pretzel Company patented a Pretzel twisting machine
On March 18, 1947, Quinlan Pretzel Company patented a Pretzel twisting machine. Pretzel is a type of baked bread product made from dough most commonly…
This Day in Patent History - On March 17, 1845, Stephen Perry (a British inventor and businessman) received a patent for the first rubber band
On March 17, 1845, Stephen Perry (a British inventor and businessman) received a patent for the first rubber band. Rubber band has been holding things…
This Day in Patent History - The iconic "Imbertson inflatable gate" was patented on March 16, 1965
The “Imbertson inflatable gate” was an inflatable rubber dam patented by Norman Imbertson. Norman Imbertson worked at the Los Angeles Department of Water and Power…
This Day in Patent History - On March 15, 1951, Pierre Leglise filed a patent for an apparatus for justifying typewritten material
This invention saved time required to achieve justification of typewritten material. On March 15, 1951, Pierre Leglise filed a patent for an apparatus for justifying…