Cessão de direito de exploração
#22.1
04/02/1985
RPI 754
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: 04/02/1985. We update with every new RPI gazette, published weekly.
Applicants
LUBRIZOL CORP
Inventors
D. K. (pessoa física)
H. T. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#22.1
04/02/1985
RPI 754
03/20/1984
RPI 700
#16.1
12/27/1983
RPI 688
#13.1
11/08/1983
RPI 681
#9.1
07/12/1983
RPI 664
#6.1
10/26/1982
RPI 627
#21.1
05/03/1994
RPI 1222
From the same holder
Same category
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