IP Library › Granted Patent US 4,647,314
Granted Patent Utility
US 4,647,314 · App. 06/708,572

Rinse water additive

Inventors: Michael A. Mullins, Peter A. Thomas
Patented Case View Patent ↗
Granted: Mar 3, 1987 Filed: Mar 5, 1985
Inventors
Michael A. Mullins
Peter A. Thomas
Assignee (at issue)
Drew Chemical 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 4,647,314
App. No.
06/708,572
Filed
1985-03-05
Granted
1987-03-03
Kind
A