IP Library › Granted Patent US 4,986,981
Granted Patent Utility
US 4,986,981 · App. 07/379,010

Toothpaste having low abrasion

Inventors: William R. Glace, Robert L. Ibsen
Patented Case View Patent ↗
Granted: Jan 22, 1991 Filed: Jul 12, 1989
Inventors
William R. Glace
Robert L. Ibsen
Assignee (at issue)
Den-Mat Holdings, 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 4,986,981
App. No.
07/379,010
Filed
1989-07-12
Granted
1991-01-22
Kind
A