Granted Patent
Utility
US 6,708,723 · App. 09/845,536
Inwardly opening mechanical vent system
Inventors:
Tak-Yiu Wong, James Turvey
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Apr 30, 2001
Inventors
Tak-Yiu Wong
James Turvey
Assignee (at issue)
JC CARTER LLC
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.