Granted Patent
Utility
US 4,264,213 · App. 06/048,280
Desegregation preventing means for asphalt mix storage apparatus
Inventor:
Bruce A. Dillman
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Jun 13, 1979
Inventor
Bruce A. Dillman
Assignee (at issue)
Bituma-Stor, Inc.
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.