20.4
12/05/1989
RPI 998
Application data
Number
PI8202521Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 12/05/1989. We update with every new RPI gazette, published weekly.
Applicants
R. C. (pessoa física)
US
Inventors
R. S. (pessoa física)
US
W. H. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
12/05/1989
RPI 998
#20.1
11/28/1989
RPI 997
#16.1
06/30/1987
RPI 871
#13.1
03/31/1987
RPI 858
#9.1
11/18/1986
RPI 839
#6.1
02/18/1986
RPI 800
#4.1
07/09/1985
RPI 768
#3.1
04/19/1983
RPI 652
#2.1
06/15/1982
RPI 608
#21.1
Patente extinta em 30/04/97
07/01/2008
RPI 1956
From the same holder
Same category
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