20.8
09/02/1986
RPI 828
The letters patent expired on 07/26/1994: 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: 09/02/1986. We update with every new RPI gazette, published weekly.
Applicants
OPTISCHE IND DE OUDE DELFT NV
Inventors
G. A. (pessoa física)
V. F. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/02/1986
RPI 828
#16.1
03/29/1983
RPI 649
#13.1
12/14/1982
RPI 634
#9.1
07/27/1982
RPI 614
#4.1
10/27/1981
RPI 575
#21.1
07/26/1994
RPI 1234
From the same holder
Same category
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