Salisbury, MD asked in Patents (Intellectual Property) for Maryland

Q: Is there a means to obtain assistance to sale this patent for royalties / USAU.S. patent number 4,784,433

1 Lawyer Answer
Ali Makoui
Ali Makoui

A: Utility patent terms are 20 years from the filing date (plus any possible patent term adjustments). The U.S. patent 4,784,433, "Portable sunshade for infants in vehicles" has expired in 2008. Once a patent expires, it becomes a public property. Everyone can make it or use it without royalties.

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