IP Library › Granted Patent US 4,132,748
Granted Patent Utility
US 4,132,748 · App. 05/790,634

Polymeric flame-retardant thermoplastic resins

Inventors: Ralph P. Arthur, Roy Maxwell Turner
Patented Case View Patent ↗
Granted: Jan 2, 1979 Filed: Apr 25, 1977
Inventors
Ralph P. Arthur
Roy Maxwell Turner
Assignee (at issue)
BorgWarner 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 4,132,748
App. No.
05/790,634
Filed
1977-04-25
Granted
1979-01-02
Kind
A