Granted Patent
Utility
US 4,639,818 · App. 06/776,943
Vent hole assembly
Inventor:
Gabe Cherian
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Sep 17, 1985
Inventor
Gabe Cherian
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.