IP Library › Granted Patent US 4,393,256
Granted Patent Utility
US 4,393,256 · App. 06/332,042

Hydration of olefins

Inventor: Robert J. Schmidt
Patented Case View Patent ↗
Granted: Jul 12, 1983 Filed: Dec 17, 1981
Inventor
Robert J. Schmidt
Assignee (at issue)
UOP LLC

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 4,393,256
App. No.
06/332,042
Filed
1981-12-17
Granted
1983-07-12
Kind
A