IP Library Granted Patent US 4,992,602
Granted Patent Utility
US 4,992,602 · App. 07/471,751

Preparation of tertiary butyl alcohol

Inventors: John R. Sanderson, Edward T. Marquis
Patented Case View Patent ↗
Granted: Feb 12, 1991 Filed: Jan 29, 1990
Inventors
John R. Sanderson
Edward T. Marquis
Assignee (at issue)
Texaco Chemical Inc.

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 4,992,602
App. No.
07/471,751
Filed
1990-01-29
Granted
1991-02-12
Kind
A