Inventor

John Steffan

Inventor
Erie, PA, US

Overview

1→
Patents
1991
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 1 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

E03Dprimary
E03DWater-closets or urinals with flushing devices50%
Y10TTechnical subjects covered by former us classification50%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to ZURN IND INC (1)· patent assignee history
1991Based in Erie, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ZURN IND INC11991
Locations
LocationPatentsSpan
Erie, Pennsylvania, US11991