6.2
05/30/1989
RPI 971
Application data
Number
PI8504773Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
H. I. (pessoa física)
US
Inventors
D. R. (pessoa física)
US
IPC Classification
Priority claims
US
681.800 · 12/14/1984
Publications in the Brazilian Industrial Property Gazette (RPI).
05/30/1989
RPI 971
10/18/1988
RPI 939
#4.1
10/29/1986
RPI 836
#3.1
07/22/1986
RPI 822
#2.1
12/10/1985
RPI 790
#21.1
Patente extinta em 27/09/2000
07/15/2008
RPI 1958
#16.1
11/26/1991
RPI 1095
#13.1
09/10/1991
RPI 1084
#9.1
05/28/1991
RPI 1069
From the same holder
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