Granted Patent
Utility
US 4,916,186 · App. 07/038,461
Impact- and weather-resistant thermoplastic polyblends
Inventors:
Raymond D. Burk, Fred M. Peng, A. Hameed Bhombal
Patented Case
View Patent ↗
Granted: Apr 10, 1990
Filed: Apr 13, 1987
Inventors
Raymond D. Burk
Fred M. Peng
A. Hameed Bhombal
Assignee (at issue)
Monsanto Company
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.