20.4
08/23/1983
RPI 670
The patent was granted on 05/31/1983 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: 08/23/1983. We update with every new RPI gazette, published weekly.
Applicants
K. L. (pessoa física)
Inventors
B. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/23/1983
RPI 670
#16.1
05/31/1983
RPI 658
#13.1
02/16/1983
RPI 643
#9.1
10/13/1982
RPI 625
#6.1
05/25/1982
RPI 605
#4.1
11/17/1981
RPI 578
#18.2
01/28/1992
RPI 1104
From the same holder
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