IP Library Granted Patent US 5,337,928
Granted Patent Utility
US 5,337,928 · App. 08/078,138

Sealing gasket for a trigger sprayer

Inventors: Donald D. Foster, Philip L. Nelson
Patented Case View Patent ↗
Granted: Aug 16, 1994 Filed: Jun 15, 1993
Inventors
Donald D. Foster
Philip L. Nelson
Assignee (at issue)
Contico International, LLC

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 5,337,928
App. No.
08/078,138
Filed
1993-06-15
Granted
1994-08-16
Kind
A