Granted Patent
Utility
US 6,604,492 · App. 10/087,701
Vaporizer
Inventors:
George K. Porter, Seth B. Wolf, Charles W. Albrecht
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Feb 28, 2002
Inventors
George K. Porter
Seth B. Wolf
Charles W. Albrecht
Assignee (at issue)
Porter Instrument Company, 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.