IP Library › Granted Patent US 4,483,084
Granted Patent Utility
US 4,483,084 · App. 06/386,694

Trencher

Inventors: Robert Caldwell, Randy J. Scott
Patented Case View Patent ↗
Granted: Nov 20, 1984 Filed: Jun 9, 1982
Inventors
Robert Caldwell
Randy J. Scott
Assignee (at issue)
Grizzly Corporations

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 4,483,084
App. No.
06/386,694
Filed
1982-06-09
Granted
1984-11-20
Kind
A