Granted Patent
Utility
US 5,751,218 · App. 08/684,947
Smoke detector housing for improved smoke collection
Inventors:
Charles Winterble, Wayne Nelson, Lawrence G. Stanley
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Jul 19, 1996
Inventors
Charles Winterble
Wayne Nelson
Lawrence G. Stanley
Assignee (at issue)
Simplex Time Recorder Co.
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.