IP Library › Granted Patent US 4,618,352
Granted Patent Utility
US 4,618,352 · App. 06/435,940

Dust collector

Inventor: Robert T. Nelson
Patented Case View Patent ↗
Granted: Oct 21, 1986 Filed: Oct 22, 1982
Inventor
Robert T. Nelson

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 4,618,352
App. No.
06/435,940
Filed
1982-10-22
Granted
1986-10-21
Kind
A