Granted Patent
Utility
US 4,453,870 · App. 06/355,827
Accumulator
Inventor:
Harley F. Bean
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Mar 8, 1982
Inventor
Harley F. Bean
Assignee (at issue)
The Mead 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.