20.4
08/27/1985
RPI 775
Application data
Number
PI7800189Type
Filing
Publication
The letters patent expired on 07/20/1993: 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: 08/27/1985. We update with every new RPI gazette, published weekly.
Applicants
Indústria de Plásticos Elka Ltda.
BR
Inventors
E. K. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/27/1985
RPI 775
#22.1
04/02/1985
RPI 754
#16.1
04/26/1983
RPI 653
03/01/1983
RPI 645
#11.4
12/28/1982
RPI 636
#13.1
06/01/1982
RPI 606
#9.1
01/26/1982
RPI 588
#4.1
06/03/1980
RPI 502
#3.1
08/14/1979
RPI 460
#21.1
07/20/1993
RPI 1181
Same category
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