Assignment of Assignor's Interest

Recorded: 1995-09-11 Pages: 4

Assignor

W.R. GRACE & COMPANY - CONN.

Executed: 1995-05-31

Assignee

SIPLAST, INC.

XEROX CENTER, SUITE 1600, 222 WEST LAS COLINAS BOULEVARD, IRVING, TEXAS, 75039

Covered Properties (5)

Ventilated Insulated Roofing System

Patent: 4,189,886 →

Application: 05/658,145 →

Fastener for Securing Roofing Material to Cementitious Roof Decks Having Removable Tab

Patent: 4,641,472 →

Application: 05/882,709 →

Fastener for Securing Roofing Material to Cementitious Roof Decks

Patent: 4,641,471 →

Application: 05/882,859 →

Thin Section Insulating Concrete of High Strength and Low Water Requirement

Patent: 4,293,341 →

Application: 06/092,157 →

Fastener for Securing Roofing Material to Cementitious Roof Decks Having Removable Tab

Patent: 4,627,207 →

Application: 06/311,697 →

Related Assignments (1)

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