Granted Patent
Utility
US 5,827,360 · App. 08/960,442
Method and equipment for producing foam bitumen
Inventor:
Nestor Mikael Salminen
Patented Case
View Patent ↗
Granted: Oct 27, 1998
Filed: Oct 22, 1997
Inventor
Nestor Mikael Salminen
Assignee (at issue)
CMI LIMITED CO.
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.