IP Library › Granted Patent US 5,518,151
Granted Patent Utility
US 5,518,151 · App. 08/233,040

Dip tube for hand operated dispensing device

Inventor: Michael G. Knickerbocker
Patented Case View Patent ↗
Granted: May 21, 1996 Filed: Apr 25, 1994
Inventor
Michael G. Knickerbocker
Assignee (at issue)
AptarGroup, 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 5,518,151
App. No.
08/233,040
Filed
1994-04-25
Granted
1996-05-21
Kind
A