Patents Assigned to Therma-Systems Corporation
  • Method for producing a heat set article of thermoformed polyethylene terephthalate
    Patent number: 5106567
    Abstract: As an article of manufacture, an ovenable shaped article formed of polyethylene terephthalate having a degree of crystallinity of at least 20%, said crystallinity being substantially uniform over the whole of the shaped article, and a process and apparatus for making same.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: April 21, 1992
    Assignee: Therma-Systems Corporation
    Inventor: A. Edward Demerest
  • Combined insulated food service tray and cover
    Patent number: D305085
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: December 19, 1989
    Assignee: Therma-Systems Corporation
    Inventor: Edgar Otto
  • Container lid
    Patent number: D353769
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: December 27, 1994
    Assignee: Therma-Systems Corporation
    Inventor: Robert Miller
  • Container lid
    Patent number: D354438
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: January 17, 1995
    Assignee: Therma-Systems Corporation
    Inventor: Robert Miller