IP Library › Granted Patent US 5,304,142
Granted Patent Utility
US 5,304,142 · App. 07/925,092

Dilator - Introducer locking hub and sheath valve apparatus

Inventors: David A. Liebl, Bruce Funk
Patented Case View Patent ↗
Granted: Apr 19, 1994 Filed: Aug 4, 1992
Inventors
David A. Liebl
Bruce Funk
Assignee (at issue)
MedAmicus, 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 5,304,142
App. No.
07/925,092
Filed
1992-08-04
Granted
1994-04-19
Kind
A