Solicitação de exame técnico
#4.1
09/01/1987
RPI 880
Application data
Number
PI8404835Type
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: 09/01/1987. We update with every new RPI gazette, published weekly.
Applicants
D. C. (pessoa física)
US
Inventors
D. W. (pessoa física)
US
O. S. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/01/1987
RPI 880
#3.1
08/13/1985
RPI 773
#2.1
12/04/1984
RPI 737
#21.1
Patente extinta em 26/09/99
07/08/2008
RPI 1957
#16.1
10/29/1991
RPI 1091
#15.11
10/15/1991
RPI 1089
#13.1
08/06/1991
RPI 1079
#9.1
04/23/1991
RPI 1064
#6.1
10/09/1990
RPI 1036
#6.1
05/29/1990
RPI 1020
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.