Concessão da patente
#16.1
09/26/1989
RPI 988
Application data
Number
PI8201886Type
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
NL Industries, Inc.
US
Inventors
L. H. (pessoa física)
US
R. H. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
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