IP Library Granted Patent US 4,356,609
Granted Patent Utility
US 4,356,609 · App. 06/215,911

Spindle keylock

Inventor: Kenneth A. Wollermann
Patented Case View Patent ↗
Granted: Nov 2, 1982 Filed: Dec 12, 1980
Inventor
Kenneth A. Wollermann
Assignee (at issue)
Kearney & Trecker 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 4,356,609
App. No.
06/215,911
Filed
1980-12-12
Granted
1982-11-02
Kind
A