Granted Patent
Utility
US 6,080,307 · App. 09/162,695
Storm drain systems for filtering trash and hydrocarbons
Inventors:
James F. Morris, Stephen C. Stelpstra, Mark Thurman Kahn, Stephen F. Pegler, Scott L. Larsen
Patented Case
View Patent ↗
Granted: Jun 27, 2000
Filed: Sep 29, 1998
Inventors
James F. Morris
Stephen C. Stelpstra
Mark Thurman Kahn
Stephen F. Pegler
Scott L. Larsen
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.