Granted Patent
Utility
US 6,792,982 · App. 10/470,459
Vacuum device for substance extraction
Inventors:
Danny F. Lincoln, Krishna Kumar, Mark A. Samuels
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Jul 28, 2003
Inventors
Danny F. Lincoln
Krishna Kumar
Mark A. Samuels
Assignee (at issue)
Spectrx, 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.