Granted Patent
Utility
US 6,644,657 · App. 10/029,337
Accumulator having power ramp
Inventors:
William J. Wright, Rebecca J. Anderson
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Oct 25, 2001
Inventors
William J. Wright
Rebecca J. Anderson
Assignee (at issue)
Pitney Bowes 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.