Concessão da patente
#16.1
08/30/1988
RPI 932
Application data
Number
PI8300209Type
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: 08/30/1988. We update with every new RPI gazette, published weekly.
Applicants
Exxon Research And Engineering Company.
US
Inventors
S. G. (pessoa física)
S. W. (pessoa física)
S. L. (pessoa física)
IPC Classification
Priority claims
US
339.891 · 01/18/1982
US
339.901 · 01/18/1982
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/30/1988
RPI 932
#13.1
06/07/1988
RPI 920
#9.1
02/09/1988
RPI 903
#6.1
02/24/1987
RPI 853
#4.1
12/17/1985
RPI 791
#3.1
11/01/1983
RPI 680
#2.1
03/15/1983
RPI 647
#21.1
Patente extinta em 17/01/98
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.