IP Library › Granted Patent US 4,784,410
Granted Patent Utility
US 4,784,410 · App. 07/009,255

Concentric piping flex joint

Inventors: George W. Peppel, Paul E. Sullivan
Patented Case View Patent ↗
Granted: Nov 15, 1988 Filed: Jan 30, 1987
Inventors
George W. Peppel
Paul E. Sullivan
Assignee (at issue)
Lockheed 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 4,784,410
App. No.
07/009,255
Filed
1987-01-30
Granted
1988-11-15
Kind
A