Assignment of Assignor's Interest

Recorded: 2000-02-14 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 W. FOSTER AVENUE, BENSENVILLE, ILLINOIS, 60106

Covered Property (1)

Vent Valve with Liquid Seal

Patent: 6,056,005 →

Application: 08/968,609 →

Related Assignments (1)

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