IP Library › Granted Patent US 5,993,757
Granted Patent Utility
US 5,993,757 · App. 09/027,063

Reoximation of metal extraction circuit organics

Inventors: Michael J. Virnig, Leroy O. Krbechek, Mary I. Casey
Patented Case View Patent ↗
Granted: Nov 30, 1999 Filed: Feb 20, 1998
Inventors
Michael J. Virnig
Leroy O. Krbechek
Mary I. Casey
Assignee (at issue)
Henkel Limited

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 5,993,757
App. No.
09/027,063
Filed
1998-02-20
Granted
1999-11-30
Kind
A