Where did Gordon Gould lecture in April 1957, causing complications for his patent filing?

Answer

Brookhaven National Laboratory

Gordon Gould delivered a lecture at the Brookhaven National Laboratory in April 1957. Because this event occurred several months before he submitted his formal patent application in June 1957, it constituted a public disclosure. Under United States patent law, this prior public discussion allowed the Patent Office to argue that his invention had been disclosed prematurely, leading to the suspension of his application.

Where did Gordon Gould lecture in April 1957, causing complications for his patent filing?
inventioninventorlaserGordon Gould