Granted Patent
Utility
US 6,706,147 · App. 10/314,851
Process for making fiber mats for materials of construction having improved tear strength
Inventors:
Qinyun Peng, Krishna Srinivasan
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: Dec 9, 2002
Inventors
Qinyun Peng
Krishna Srinivasan
Assignee (at issue)
BUILDING MATERIALS INVESTMENT CORPORATION
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.