20.4
10/17/1989
RPI 991
The patent was granted on 07/31/1984 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: 10/17/1989. We update with every new RPI gazette, published weekly.
Applicants
Tecnowatt Iluminação Ltda
MG, BR
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/17/1989
RPI 991
#16.1
07/31/1984
RPI 719
#13.1
06/12/1984
RPI 712
03/27/1984
RPI 701
#12.1
11/22/1983
RPI 683
#9.1
07/19/1983
RPI 665
07/05/1983
RPI 663
#6.1
02/08/1983
RPI 642
#4.1
04/20/1982
RPI 600
#18.2
04/26/1994
RPI 1221
From the same holder
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