Granted Patent
Utility
US 6,271,427 · App. 09/423,649
Method for recovery of carbon and combinations of hydrocarbons from polymers, preferably in the form of disposed tires, by pyrolysis in a pyrolysis reactor
Inventor:
Bengt-Sture Ershag
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Nov 19, 1999
Inventor
Bengt-Sture Ershag
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.