Granted Patent
Utility
US 6,595,716 · App. 09/662,948
Cam lever assembly for manhole center
Inventors:
Bryan E. VanDeVyvere, Henry Knaack, Jr.
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Sep 15, 2000
Inventors
Bryan E. VanDeVyvere
Henry Knaack, Jr.
Assignee (at issue)
Delaware Capital Formation, Inc.
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.