Granted Patent
Utility
US 6,817,152 · App. 10/665,750
Fiber mats for materials of construction having improved tear strength and process for making same
Inventors:
Qinyun Peng, Krishna Srinivasan
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Sep 18, 2003
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.