Carta-patente expirada
#21.1
Patente extinta em 13/07/2009
12/26/2012
RPI 2190
Application data
Number
PI8907522Type
Filing
Publication
PCT
US1989002727 The letters patent expired on 12/26/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants
PPG INDUSTRIES, INC.
US
PPG Industries OHIO, INC.
US
Inventors
C. W. (pessoa física)
US
J. L. (pessoa física)
US
R. S. (pessoa física)
US
IPC Classification
Priority claims
US
213.383 · 06/30/1988
US
492.499 · 03/12/1990
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 13/07/2009
12/26/2012
RPI 2190
#25.1
Transferido de: PPG Industries, Inc.
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