Pedido de licença compulsória
#20.1
10/10/1989
RPI 990
Application data
Number
PI8103925Type
Filing
Publication
The patent was granted on 12/29/1987 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: 10/10/1989. We update with every new RPI gazette, published weekly.
Applicants
NL INDUSTRIES INC
Inventors
H. L. (pessoa física)
H. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
10/10/1989
RPI 990
10/03/1989
RPI 989
#16.1
12/29/1987
RPI 897
#13.1
11/10/1987
RPI 890
#9.1
07/14/1987
RPI 873
#7.1
02/26/1985
RPI 749
10/02/1984
RPI 728
#4.1
03/27/1984
RPI 701
#3.1
03/09/1982
RPI 594
#18.2
09/13/1994
RPI 1241
From the same holder
Same category
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