IP Library Granted Patent US 6,423,897
Granted Patent Utility
US 6,423,897 · App. 09/626,478

Electrical utility box

Inventors: Mark A. Roesch, David A. Maccarone
Patented Case View Patent ↗
Granted: Jul 23, 2002 Filed: Jul 26, 2000
Inventors
Mark A. Roesch
David A. Maccarone
Assignee (at issue)
The Lamson & Sessions Co.

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 6,423,897
App. No.
09/626,478
Filed
2000-07-26
Granted
2002-07-23
Kind
B1