Concessão da patente
#16.1
05/30/1989
RPI 971
Application data
Number
PI8204435Type
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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
ROHM & HAAS [US]
Inventors
R. M. (pessoa física)
US
T. H. (pessoa física)
US
IPC Classification
Priority claims
US
291,010 · 08/07/1981
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
05/30/1989
RPI 971
#13.1
12/27/1988
RPI 949
#9.1
09/06/1988
RPI 933
#6.1
03/22/1988
RPI 909
#15.11
04/29/1986
RPI 810
#6.1
04/15/1986
RPI 808
#4.1
07/23/1985
RPI 770
#15.11
02/14/1984
RPI 695
#3.1
07/19/1983
RPI 665
#2.1
09/14/1982
RPI 621
#21.1
Patente extinta em 29/07/97
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.