Granted Patent
Utility
US 5,565,239 · App. 08/334,244
Method of making asphaltic roofing material containing class F fly ash filler
Inventor:
Clinton Wesley Pike, SR.
Patented Case
View Patent ↗
Granted: Oct 15, 1996
Filed: Nov 4, 1994
Inventor
Clinton Wesley Pike, SR.
Assignee (at issue)
JTM 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.