Assignment of Assignor's Interest

Recorded: 2001-04-17 Pages: 4

Assignors

PIOTROWSKI, THOMAS C.

Executed: 1997-12-09

CLIFT, MARTIN

Executed: 1998-01-09

LIU, BAOHAI

Executed: 1997-12-09

Assignee

PROTECTOSEAL COMPANY, THE

225 WEST FOSTER AVENUE, BENSENVILLE, ILLINOIS, 60106

Covered Property (1)

Gauge Hatch with Diaphragm and Liquid Seal

Patent: 6,244,457 →

Application: 08/979,570 →

Related Assignments (1)

Other recorded transfers of the patent in this record — the chain of ownership.