20.7
01/26/1988
RPI 901
Application data
Number
PI8204513Type
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: 01/26/1988. We update with every new RPI gazette, published weekly.
Applicants
E. C. (pessoa física)
US
Inventors
R. B. (pessoa física)
US
T. D. (pessoa física)
US
T. M. (pessoa física)
US
IPC Classification
Priority claims
US
288.723 · 07/31/1981
US
288.724 · 07/31/1981
Publications in the Brazilian Industrial Property Gazette (RPI).
01/26/1988
RPI 901
#16.1
10/27/1987
RPI 888
#13.1
08/11/1987
RPI 877
#9.1
03/31/1987
RPI 858
#6.1
07/29/1986
RPI 823
#4.1
09/10/1985
RPI 777
#3.1
07/26/1983
RPI 666
#2.1
09/14/1982
RPI 621
#21.1
Patente extinta em 30/07/97
07/01/2008
RPI 1956
From the same holder
Same category
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