Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Reexamination Certificate
2007-03-20
2009-12-08
Marcheschi, Michael A (Department: 1793)
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
C051S307000, C051S308000, C051S309000, C051S297000, C051S293000, C451S526000, C451S527000, C451S532000, C451S533000, C451S536000, C451S537000, C451S538000, C451S539000
Reexamination Certificate
active
07628829
ABSTRACT:
An abrasive article comprises a porous abrasive member, a nonwoven filter medium, and a porous attachment fabric. A plurality of openings in the porous abrasive member cooperates with the nonwoven filter medium to allow the flow of particles from an outer abrasive surface of the porous abrasive member to the porous attachment fabric. Methods of making and using the abrasive articles are included.
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Angadjivand Seyed A.
Chou Yeun-Jong
Donovan Mary B.
Rambosek Thomas W.
Sanders, Jr. Rufus C.
3M Innovative Properties Company
Marcheschi Michael A
Parvini Pegah
Wright Bradford B.
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