Solicitação de exame técnico
#4.1
10/11/1988
RPI 938
Application data
Number
PI8507227Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 10/11/1988. We update with every new RPI gazette, published weekly.
Applicants
Courtaulds Aerospace Inc
US
Inventors
H. S. (pessoa física)
US
J. H. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/11/1988
RPI 938
#1.3
08/04/1987
RPI 876
#21.1
Patente extinta em 11/06/2000
07/15/2008
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06/08/1993
RPI 1175
06/08/1993
RPI 1175
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12/31/1991
RPI 1100
#13.1
10/22/1991
RPI 1090
#9.1
06/25/1991
RPI 1073
#6.1
11/20/1990
RPI 1042
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