Solicitação de exame técnico
#4.1
08/18/1987
RPI 878
Application data
Number
PI8404370Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 08/18/1987. We update with every new RPI gazette, published weekly.
Applicants
F. C. (pessoa física)
US
Inventors
R. B. (pessoa física)
BE
IPC Classification
Priority claims
US
528.926 · 09/02/1983
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
08/18/1987
RPI 878
#3.1
07/30/1985
RPI 771
#2.1
11/06/1984
RPI 733
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era B31B 21/00.
03/27/2018
RPI 2464
#21.1
Patente extinta em 31/08/99
07/08/2008
RPI 1957
#16.1
11/26/1991
RPI 1095
#15.11
09/03/1991
RPI 1083
#13.1
08/13/1991
RPI 1080
#9.1
04/30/1991
RPI 1065
#6.1
02/13/1990
RPI 1006
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.