IP Library › Granted Patent US 4,450,601
Granted Patent Utility
US 4,450,601 · App. 06/430,930

Sweeper drag shoe

Inventor: Warren M. Shwayder
Patented Case View Patent ↗
Granted: May 29, 1984 Filed: Sep 30, 1982
Inventor
Warren M. Shwayder

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 4,450,601
App. No.
06/430,930
Filed
1982-09-30
Granted
1984-05-29
Kind
A