Granted Patent
Utility
US 5,177,143 · App. 07/485,699
Method of making heat stable polymeric gelloid composition
Inventors:
Rong J. Chang, Lester T. Toy
Patented Case
View Patent ↗
Granted: Jan 5, 1993
Filed: Feb 27, 1990
Inventors
Rong J. Chang
Lester T. Toy
Assignee (at issue)
Raychem Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.