IP Library Granted Patent US 6,510,971
Granted Patent Utility
US 6,510,971 · App. 09/974,484

Liquid dispensing closure

Inventor: Douglas S. Martin
Patented Case View Patent ↗
Granted: Jan 28, 2003 Filed: Oct 10, 2001
Inventor
Douglas S. Martin
Assignee (at issue)
Weatherchem Corporation

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 6,510,971
App. No.
09/974,484
Filed
2001-10-10
Granted
2003-01-28
Kind
B1