IP Library Granted Patent US 4,892,227
Granted Patent Utility
US 4,892,227 · App. 07/184,278

High barrier plastic container and method of making same

Inventor: Donald N. MacLaughlin
Patented Case View Patent ↗
Granted: Jan 9, 1990 Filed: Apr 21, 1988
Inventor
Donald N. MacLaughlin
Assignee (at issue)
Packaging Resources Incorporated

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 4,892,227
App. No.
07/184,278
Filed
1988-04-21
Granted
1990-01-09
Kind
A