IP Library › Granted Patent US 4,645,398
Granted Patent Utility
US 4,645,398 · App. 06/814,867

Tangless helically coiled insert

Inventors: Frank J. Cosenza, Albert K. Yamamoto
Patented Case View Patent ↗
Granted: Feb 24, 1987 Filed: Dec 30, 1985
Inventors
Frank J. Cosenza
Albert K. Yamamoto
Assignee (at issue)
REXNORD GMBH

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 4,645,398
App. No.
06/814,867
Filed
1985-12-30
Granted
1987-02-24
Kind
A