IP Library › Granted Patent US 4,669,521
Granted Patent Utility
US 4,669,521 · App. 06/895,160

Children's expandable gate with safety features to prevent head and neck entrapment

Inventors: Garrison C. Barnes, Russell H. Bullard, Robert Weber
Patented Case View Patent ↗
Granted: Jun 2, 1987 Filed: Aug 11, 1986
Inventors
Garrison C. Barnes
Russell H. Bullard
Robert Weber
Assignee (at issue)
Worldsbest Industries, 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 4,669,521
App. No.
06/895,160
Filed
1986-08-11
Granted
1987-06-02
Kind
A