The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 1998
Filed:
Feb. 09, 1996
Thomas A Matiacio, Jacksonville, FL (US);
Keith T O'Brien, Jacksonville, FL (US);
Victor Lust, Jacksonville, FL (US);
Jeffrey H Roffman, Jacksonville, FL (US);
Kornelis Renkema, Jacksonville, FL (US);
Wybren van der Meulen, Nuenen, NL;
Franciscus Paridaans, Ruesel, NL;
Jan van Lievenoogen, Heythuysen, NL;
Johnson & Johnson Vision Products, Inc., Jacksonville, FL (US);
Abstract
A method and apparatus for the manufacture of lens molds used in the formation of optical contact lenses, the apparatus including a center gate aligned on the central axis of the lens mold cavity for delivery of the melt polymer in an axisymmetrical manner. The methodology produces lens molds of extremely precise dimensions as measured against lens molds produced with side gated technology.