Pedido de licença compulsória
#20.1
12/05/1989
RPI 998
Application data
Number
PI8201885Type
Filing
Publication
The patent was granted on 04/29/1986 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: 12/05/1989. 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).
#20.1
12/05/1989
RPI 998
11/28/1989
RPI 997
#16.1
04/29/1986
RPI 810
#13.1
12/17/1985
RPI 791
#9.1
08/13/1985
RPI 773
#6.1
09/18/1984
RPI 726
#4.1
07/19/1983
RPI 665
#3.1
03/08/1983
RPI 646
#2.1
05/25/1982
RPI 605
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era C09K 7/04.
03/27/2018
RPI 2464
#18.2
11/15/1994
RPI 1250
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.