Dorothy Harper, US1269445A
Life Saving Raft.
Image credit: Hooper, D. (1917)
On June 11, 1918, Dorothy Hooper, a UK citizen living in Nahant, Massachusetts, was granted a patent for inventing a novel inflatable raft. The raft featured multiple independent air compartments designed to maintain stability and could be easily folded for storage.
Date of Application: 29 October 1917
Date of Issuance: 11 June 1918
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Francesca Chiaradia
PhD Student in Economics
My research interests include law and economics, economics of innovation, and information economics.