Concessão da patente
#16.1
09/26/1989
RPI 988
Application data
Number
PI8404747Type
Filing
Publication
The patent was granted on 09/26/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.
Applicants
Halliburton Company
US
Inventors
E. J. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
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