Concessão da patente
#16.1
02/28/1984
RPI 697
The letters patent expired on 09/21/1993: 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: 02/28/1984. We update with every new RPI gazette, published weekly.
Applicants
PILKINGTON BROTHERS LTD
Inventors
L. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/28/1984
RPI 697
#13.1
11/29/1983
RPI 684
#9.1
08/09/1983
RPI 668
#6.1
09/08/1982
RPI 620
#7.1
01/26/1982
RPI 588
#21.1
09/21/1993
RPI 1190
03/05/1991
RPI 1057
02/26/1991
RPI 1056
From the same holder
Same category
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