Solicitação de exame técnico
#4.1
12/30/1986
RPI 845
Application data
Number
PI8401813Type
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: 12/30/1986. We update with every new RPI gazette, published weekly.
Applicants
American Cyanamid Company
US
Inventors
W. D. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
12/30/1986
RPI 845
#3.1
11/27/1984
RPI 736
#2.1
06/26/1984
RPI 714
#21.1
Patente extinta em 17/04/99
07/08/2008
RPI 1957
#16.1
08/27/1991
RPI 1082
#15.11
08/06/1991
RPI 1079
#13.1
04/23/1991
RPI 1064
#9.1
01/08/1991
RPI 1049
#7.1
04/24/1990
RPI 1015
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.