Granted Patent
Utility
US 5,535,514 · App. 08/289,040
Method for making a hydraulic door closer having a one-piece molded housing body
Inventor:
Craig L. Lucas
Patented Case
View Patent ↗
Granted: Jul 16, 1996
Filed: Aug 11, 1994
Inventor
Craig L. Lucas
Assignee (at issue)
Schlage Lock Company 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.