IP Library Granted Patent US 3,933,180
Granted Patent Utility
US 3,933,180 · App. 05/408,339

Methods and apparatus for making fiber reinforced plastic pipe

Inventor: J. Warne Carter, Sr.
Patented Case View Patent ↗
Granted: Jan 20, 1976 Filed: Oct 23, 1973
Inventor
J. Warne Carter, Sr.
Assignee (at issue)
Ciba-Geigy

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 3,933,180
App. No.
05/408,339
Filed
1973-10-23
Granted
1976-01-20
Kind
A