Concessão da patente
#16.1
07/25/1989
RPI 979
Application data
Number
PI8100348Type
Filing
Publication
The patent was granted on 07/25/1989 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: 07/25/1989. We update with every new RPI gazette, published weekly.
Applicants
NL INDUSTRIES INC
Inventors
F. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
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RPI 979
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