IP Library › Granted Patent US 5,186,744
Granted Patent Utility
US 5,186,744 · App. 07/640,451

Propoxylated PTB coalescing agents for water-borne protective coatings

Inventors: James R. Bodwell, Stephen H. Harris, David C. Dehm
Patented Case View Patent ↗
Granted: Feb 16, 1993 Filed: Jan 11, 1991
Inventors
James R. Bodwell
Stephen H. Harris
David C. Dehm

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 5,186,744
App. No.
07/640,451
Filed
1991-01-11
Granted
1993-02-16
Kind
A