Granted Patent
Utility
US 4,266,975 · App. 06/136,943
Anticorrosive coating composition
Inventors:
Takao Higashiyama, Toshio Nishikawa
Patented Case
View Patent ↗
Granted: May 12, 1981
Filed: Apr 3, 1980
Inventors
Takao Higashiyama
Toshio Nishikawa
Assignee (at issue)
Diamond Shamrock 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.