Granted Patent
Utility
US 4,352,636 · App. 06/139,648
Dual piston pump
Inventors:
Williams G. Patterson, Allen B. Rochkind, Leslie A. Miller, Martin Bradley
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: Apr 14, 1980
Inventors
Williams G. Patterson
Allen B. Rochkind
Leslie A. Miller
Martin Bradley
Assignee (at issue)
Spectra-Physics, 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.