Granted Patent
Utility
US 6,106,707 · App. 09/252,041
Curb-inlet storm drain systems for filtering trash and hydrocarbons
Inventors:
James F. Morris, Stephen C. Stelpstra
Patented Case
View Patent ↗
Granted: Aug 22, 2000
Filed: Feb 17, 1999
Inventors
James F. Morris
Stephen C. Stelpstra
Assignee (at issue)
AbTech Industries, 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.