IP Library Granted Patent US 6,792,820
Granted Patent Utility
US 6,792,820 · App. 10/113,815

Method and accessories for pipe replacement

Inventors: Steven W. Wentworth, Payce D. Reynolds
Patented Case View Patent ↗
Granted: Sep 21, 2004 Filed: Mar 29, 2002
Inventors
Steven W. Wentworth
Payce D. Reynolds
Assignee (at issue)
Earth Tool Company LLC

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 6,792,820
App. No.
10/113,815
Filed
2002-03-29
Granted
2004-09-21
Kind
B2