Granted Patent
Utility
US 4,673,801 · App. 06/750,763
PTC heater assembly
Inventors:
David F. Leary, Alan Brigham
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Jun 28, 1985
Inventors
David F. Leary
Alan Brigham
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.