Notificação de entrada na fase nacional - PCT
#1.3
10/03/1989
RPI 989
Application data
Number
PI8707841Type
Filing
Publication
PCT
US1987002475 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: 10/03/1989. We update with every new RPI gazette, published weekly.
Applicants
PPG Industries, Inc.
US
Inventors
C. C. (pessoa física)
US
W. K. (pessoa física)
US
IPC Classification
Priority claims
US
074.692 · 07/23/1987
US
912.718 · 09/26/1986
US
929.936 · 11/12/1986
Publications in the Brazilian Industrial Property Gazette (RPI).
#1.3
10/03/1989
RPI 989
#21.1
Patente extinta em 28/09/2002
07/29/2008
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