Concessão da patente
#16.1
12/27/1988
RPI 949
Application data
Number
PI8201875Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 12/27/1988. We update with every new RPI gazette, published weekly.
Applicants
M. C. (pessoa física)
US
Inventors
C. P. (pessoa física)
US
E. R. (pessoa física)
US
M. R. (pessoa física)
US
IPC Classification
Priority claims
US
250.518 · 04/02/1981
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/27/1988
RPI 949
#13.1
10/25/1988
RPI 940
#9.1
06/21/1988
RPI 922
#6.1
12/08/1987
RPI 894
#7.1
03/04/1987
RPI 854
#5.1
10/01/1985
RPI 780
#4.1
04/30/1985
RPI 758
#3.1
03/08/1983
RPI 646
#2.1
05/25/1982
RPI 605
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C01B 33/28; B01J 29/89; C01B 39/00; C01B 39/04; C01B 39/10; C01B 39/48; C07B 61/00; C07C 1/00; C07C 1/20; C07C 2/12; C07C 67/00.
03/27/2018
RPI 2464
#21.1
Patente extinta em 02/04/97
07/01/2008
RPI 1956
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.