Concessão da patente
#16.1
01/10/1989
RPI 951
Application data
Number
PI8404862Type
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: 01/10/1989. We update with every new RPI gazette, published weekly.
Applicants
W. C. (pessoa física)
US
Inventors
P. W. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
01/10/1989
RPI 951
#13.1
10/25/1988
RPI 940
#9.1
06/21/1988
RPI 922
#4.1
08/11/1987
RPI 877
#3.1
08/13/1985
RPI 773
#2.1
12/11/1984
RPI 738
#21.1
Patente extinta em 27/09/99
07/08/2008
RPI 1957
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.