Granted Patent
Utility
US 6,672,192 · App. 09/849,593
Method of cutting insulation for a pipe elbow
Inventor:
Edward Kaspersion
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: May 7, 2001
Inventor
Edward Kaspersion
Assignee (at issue)
Kelkor Enterprises Ltd.
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.