IP Library Granted Patent US 4,500,432
Granted Patent Utility
US 4,500,432 · App. 06/538,832

Automated sample concentrator for trace components

Inventors: John S. Poole, Dennis R. Gere, Raymond Bell, Mark Nickerson
Patented Case View Patent ↗
Granted: Feb 19, 1985 Filed: Oct 4, 1983
Inventors
John S. Poole
Dennis R. Gere
Raymond Bell
Mark Nickerson
Assignee (at issue)
Hewlett-Packard Company, L.P.

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,500,432
App. No.
06/538,832
Filed
1983-10-04
Granted
1985-02-19
Kind
A