IP Library › Granted Patent US 4,184,855
Granted Patent Utility
US 4,184,855 · App. 05/865,732

Process for CO.sub.2 removal

Inventors: Kenneth F. Butwell, Daniel J. Kubek
Patented Case View Patent ↗
Granted: Jan 22, 1980 Filed: Dec 29, 1977
Inventors
Kenneth F. Butwell
Daniel J. Kubek
Assignee (at issue)
Union Carbide Corporation

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 4,184,855
App. No.
05/865,732
Filed
1977-12-29
Granted
1980-01-22
Kind
A