IP Library › Granted Patent US 4,314,389
Granted Patent Utility
US 4,314,389 · App. 06/081,688

Double fold over jewelry clasp

Inventors: Alfred E. Sauer, Bruno Tassoni
Patented Case View Patent ↗
Granted: Feb 9, 1982 Filed: Oct 4, 1979
Inventors
Alfred E. Sauer
Bruno Tassoni
Assignee (at issue)
B.A. BALLOU & 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.

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 4,314,389
App. No.
06/081,688
Filed
1979-10-04
Granted
1982-02-09
Kind
A