Granted Patent
Utility
US 6,460,571 · App. 10/026,185
Crimped piston/membrane accumulator
Inventors:
Bahram S. Rajabi, Allen R. Hansen
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Dec 19, 2001
Inventors
Bahram S. Rajabi
Allen R. Hansen
Assignee (at issue)
Parker-Hannifin 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.