Cessão de direito de exploração
#22.1
02/23/1988
RPI 905
Application data
Number
PI8204743Type
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: 02/23/1988. We update with every new RPI gazette, published weekly.
Applicants
H. W. (pessoa física)
SP, BR
Inventors
H. W. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#22.1
02/23/1988
RPI 905
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10/01/1985
RPI 780
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04/16/1985
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06/12/1984
RPI 712
#3.1
03/20/1984
RPI 700
#2.1
09/28/1982
RPI 623
#21.1
Patente extinta em 11/08/97
07/01/2008
RPI 1956
Same category
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