Conhecimento de parecer técnico
#7.1
10/18/1988
RPI 939
Application data
Number
PI8406796Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 10/18/1988. We update with every new RPI gazette, published weekly.
Applicants
Hydril Company
US
Inventors
J. B. (pessoa física)
US
J. H. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
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