Granted Patent
Utility
US 4,620,664 · App. 06/764,315
Coupon bearing carton construction
Inventors:
George Kaufman, Ernest E. Lindlar
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Aug 9, 1985
Inventors
George Kaufman
Ernest E. Lindlar
Assignee (at issue)
Church & Dwight Co., 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.