IP Library › Granted Patent US 4,313,858
Granted Patent Utility
US 4,313,858 · App. 06/157,868

Polyurethane encapsulating resins

Inventors: Mason H. Earing, Paul Martin, Glenn Petschke
Patented Case View Patent ↗
Granted: Feb 2, 1982 Filed: Jun 9, 1980
Inventors
Mason H. Earing
Paul Martin
Glenn Petschke
Assignee (at issue)
Textron 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 4,313,858
App. No.
06/157,868
Filed
1980-06-09
Granted
1982-02-02
Kind
A