Deferimento
#9.1
11/07/1989
RPI 994
Application data
Number
PI8401391Type
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: 11/07/1989. We update with every new RPI gazette, published weekly.
Applicants
American Cyanamid Company
US
Inventors
M. N. (pessoa física)
US
W. S. (pessoa física)
US
IPC Classification
Priority claims
US
479,301 · 03/28/1983
Publications in the Brazilian Industrial Property Gazette (RPI).
#9.1
11/07/1989
RPI 994
#4.1
11/25/1986
RPI 840
#3.1
11/06/1984
RPI 733
#2.1
06/12/1984
RPI 712
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 121/43; C07C 120/00.
03/27/2018
RPI 2464
#21.1
Patente extinta em 27/03/99
07/08/2008
RPI 1957
#15.11
08/06/1991
RPI 1079
#16.1
05/29/1990
RPI 1020
#13.1
03/13/1990
RPI 1009
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.