Granted Patent
Utility
US 4,576,837 · App. 06/713,616
Method of treating surfaces
Inventors:
Gregorio Tarancon, Efrain Acevedo, Abel Saud
Patented Case
View Patent ↗
Granted: Mar 18, 1986
Filed: Mar 19, 1985
Inventors
Gregorio Tarancon
Efrain Acevedo
Abel Saud
Assignee (at issue)
Tarancon 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.