Event of the Day – September 28 is celebrated as National Good Neighbors Day in the United States. Here is patent that discloses a refrigerator…
Tag: TDIH
This Day in Patent History - On September 27, 1977 - Anacleto Montero Sanchez received a patent for a hypodermic syringe
Patent Information Patent Number: US4050459 A Patent Title: Hypodermic syringe Publication date: Sep 27, 1977 Filing date: May 20, 1976 Priority date: May 23, 1975…
Interesting fact about patents - The ancient Greeks in 500 B.C. first granted protection to inventors
The ancient Greeks in 500 B.C. granted protection to inventors. First patent law was enacted by the Venetian Republic in 1474.
This Day in Patent History - On September 25, 1908, Elmer Sperr filed a patent for gyroscope
On September 25, 1908, Elmer Sperr filed a patent for gyroscope. He is noted as father of modern navigation technology. By the time of his…
Serendipitous Invention (TEFLON): This Day in Patent History - On February 4, 1941 Roy Plunkett received a patent for TEFLON
Serendipitous Invention – TEFLON On February 4, 1941 Roy Plunkett received a patent for “tetrafluoro-ethylene polymers” (TEFLON). Roy serendipitously invented TEFLON, while working for a…
This Day in Patent History - On January 23, 1849, a patent was granted for an envelope-making machine, greatly reducing the time needed for the mass production of envelopes
On January 23, 1849, a patent was granted for an envelope-making machine, greatly reducing the time needed for the mass production of envelopes. Patent…