IP Library › Granted Patent US 5,163,954
Granted Patent Utility
US 5,163,954 · App. 07/658,535

Suture ring for heart valve prostheses

Inventors: Maria Curcio, Enrico Pasquino, Stefano Rinalki, Franco Vallana
Patented Case View Patent ↗
Granted: Nov 17, 1992 Filed: Feb 21, 1991
Inventors
Maria Curcio
Enrico Pasquino
Stefano Rinalki
Franco Vallana
Assignee (at issue)
Sorin Biomedica S.p.A.

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 5,163,954
App. No.
07/658,535
Filed
1991-02-21
Granted
1992-11-17
Kind
A