IP Library › Granted Patent US 4,544,532
Granted Patent Utility
US 4,544,532 · App. 06/660,592

Solvent extraction

Inventors: Gary A. Kordosky, R. Brantley Sudderth, J. Michael Sierakoski, Kenneth Mackay
Patented Case View Patent ↗
Granted: Oct 1, 1985 Filed: Oct 15, 1984
Inventors
Gary A. Kordosky
R. Brantley Sudderth
J. Michael Sierakoski
Kenneth Mackay
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 4,544,532
App. No.
06/660,592
Filed
1984-10-15
Granted
1985-10-01
Kind
A