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#18.2
10/03/1989
RPI 989
The letters patent expired on 05/03/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 10/03/1989. We update with every new RPI gazette, published weekly.
Applicants
TEXACO DEVELOPMENT CORP
Inventors
B. O. (pessoa física)
B. P. (pessoa física)
H. C. (pessoa física)
P. H. (pessoa física)
S. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#18.2
10/03/1989
RPI 989
#16.1
03/25/1986
RPI 805
10/29/1985
RPI 784
#12.1
06/21/1983
RPI 661
#9.1
03/01/1983
RPI 645
#5.1
09/14/1982
RPI 621
#4.1
04/27/1982
RPI 601
#7.1
01/26/1982
RPI 588
#21.1
05/03/1994
RPI 1222
01/09/1990
RPI 1001
From the same holder
Same category
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