IP Library › Granted Patent US 4,530,406
Granted Patent Utility
US 4,530,406 · App. 06/490,831

Spring clamp shank assembly

Inventors: Kenneth A. Hake, Gregory A. Hamilton
Patented Case View Patent ↗
Granted: Jul 23, 1985 Filed: May 2, 1983
Inventors
Kenneth A. Hake
Gregory A. Hamilton
Assignee (at issue)
Kent Manufacturing Co., 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 4,530,406
App. No.
06/490,831
Filed
1983-05-02
Granted
1985-07-23
Kind
A