Patents Assigned to The SAS Group, LLC
  • Patent number: 5909021
    Abstract: The keypad is made of a) a formed plastic shell; b) graphics and background printed on the interior surface of the formed plastic shell; and c) a plastic filling the hollow cavity or cavities of the formed plastic shell. The formed plastic shell of the keypad is a polycarbonate and the plastic filling the hollow cavities is a thermoplastic resin or an elastomer. Additionally, the background printed on the interior surface of the formed plastic shell is made with a flexible ink and the keypad has a wear resistance test score in a Norman tester of greater than 40 cycles before the ink on the keypad fails on abrasion testing.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: June 1, 1999
    Assignee: The SAS Group, LLC
    Inventor: Patrick Duffy