Date in year · 1930 · The 1930s
November 11, 1930
On November 11, 1930, patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.
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1930s
Featured · November 11, 1930
Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.
A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time, in exchange for publishing an enabling disclosure of the invention. It offers a bargain between society and inventor: for a limited period of exclusivity, the inventor agrees to make the invention public rather than to keep it secret. In most countries, patent rights fall under private law and the patent holder must sue someone infringing the patent in order to enforce their rights.
Around 1930
The year in brief
1930 (MCMXXX) was a common year starting on Wednesday of the Gregorian calendar, the 1930th year of the Common Era (CE) and Anno Domini (AD) designations, the 930th year of the 2nd millennium, the 30th year of the 20th century, and the 1st year of the 1930s decade.
What happened
On November 11, 1930
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1930 Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator. Type of legal protection for an invention
A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time, in exchange for publishing an enabling disclosure of the invention. It offers a bargain between society and inventor: for a limited period of exclusivity, the inventor agrees to make the invention public rather than to keep it secret. In most countries, patent rights fall under private law and the patent holder must sue someone infringing the patent in order to enforce their rights.
Elsewhere that year
Other moments from 1930
- April 18 A fire kills 118 people at a wooden church in the small Romanian town of Costești, most of them schoolchildren, after starting during Good Friday services.
- April 2 After the mysterious death of Empress Zewditu, Haile Selassie is proclaimed emperor of Ethiopia.
- April 22 The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
- April 28 The Independence Producers host the first night game in the history of Organized Baseball in Independence, Kansas.
- April 6 At the end of the Salt March, Gandhi raises a lump of mud and salt and declares, "With this, I am shaking the foundations of the British Empire."
- August 16 The first color sound cartoon, Fiddlesticks, is released by Ub Iwerks.
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