Publicação do pedido de patente
#3.1
03/15/1988
RPI 908
Application data
Number
PI8703303Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 03/15/1988. We update with every new RPI gazette, published weekly.
Applicants
PPG INDUSTRIES INC [US]
Inventors
M. J. (pessoa física)
US
IPC Classification
Priority claims
US
880.379 · 06/30/1986
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
03/15/1988
RPI 908
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09/01/1987
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Patente extinta em 29/06/2002
07/29/2008
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08/31/1993
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06/08/1993
RPI 1175
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02/24/1993
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01/14/1992
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11/06/1990
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