LOMBART LENSES LIMITED, INC., A CORP. OF DE.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4284591 Injection molding of optical lenses and optical moldsExpiredOct 23, 80Aug 18, 81[B29D]
4247492 Method of controlling the adhesion of cast lenses to the moldExpiredJun 28, 79Jan 27, 81[B29D]
4229390 Method of making cast aspheric lensesExpiredJul 16, 79Oct 21, 80[B29D]
4188353 Method of making aspheric lensesExpiredJan 22, 79Feb 12, 80[B29D]

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