Carta-patente expirada
#21.1
Patente extinta em 10/06/2003
09/02/2008
RPI 1965
Application data
Number
PI8807544Type
Filing
Publication
PCT
AU1988000186 The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.
Applicants
Baker Hughes Limited
GB
Inventors
C. K. (pessoa física)
AU
N. C. (pessoa física)
AU
IPC Classification
Priority claims
AU
PI 2390/87 · 06/10/1987
AU
PI 6102/87 · 12/24/1987
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 10/06/2003
09/02/2008
RPI 1965
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