IP Library › Granted Patent US 4,980,503
Granted Patent Utility
US 4,980,503 · App. 06/896,683

Conversion of glycol formates to monocarboxylic acids

Inventors: John M. Larkin, George P. Speranza
Patented Case View Patent ↗
Granted: Dec 25, 1990 Filed: Aug 15, 1986
Inventors
John M. Larkin
George P. Speranza
Assignee (at issue)
Texaco 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 4,980,503
App. No.
06/896,683
Filed
1986-08-15
Granted
1990-12-25
Kind
A