IP Library › Granted Patent US 4,842,214
Granted Patent Utility
US 4,842,214 · App. 07/112,197

Adaptor for twist frame forming tube

Inventors: Kenneth T. Harrop, Ray T. Carver
Patented Case View Patent ↗
Granted: Jun 27, 1989 Filed: Oct 26, 1987
Inventors
Kenneth T. Harrop
Ray T. Carver
Assignee (at issue)
Owens Corning Fiberglass 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 4,842,214
App. No.
07/112,197
Filed
1987-10-26
Granted
1989-06-27
Kind
A